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25052805752 = 231317231314703
BaseRepresentation
bin10111010101010000…
…110111101001111000
32101122222021101200112
4113111100313221320
5402302004241002
615301544323452
71544555223002
oct272520675170
971588241615
1025052805752
11a696723847
124a32173588
132493464a20
1412d93b1372
159b9653852
hex5d5437a78

25052805752 has 128 divisors (see below), whose sum is σ = 56330588160. Its totient is φ = 10327848960.

The previous prime is 25052805751. The next prime is 25052805829. The reversal of 25052805752 is 25750825052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25052805751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5324633 + ... + 5329335.

It is an arithmetic number, because the mean of its divisors is an integer number (440082720).

Almost surely, 225052805752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25052805752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28165294080).

25052805752 is an abundant number, since it is smaller than the sum of its proper divisors (31277782408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25052805752 is a wasteful number, since it uses less digits than its factorization.

25052805752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893 (or 4889 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 41.

The spelling of 25052805752 in words is "twenty-five billion, fifty-two million, eight hundred five thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 17 23 26 34 46 52 68 92 104 131 136 184 221 262 299 391 442 524 598 782 884 1048 1196 1564 1703 1768 2227 2392 3013 3128 3406 4454 4703 5083 6026 6812 8908 9406 10166 12052 13624 17816 18812 20332 24104 28951 37624 39169 40664 51221 57902 61139 78338 79951 102442 108169 115804 122278 156676 159902 204884 216338 231608 244556 313352 319804 409768 432676 489112 616093 639608 665873 865352 1039363 1232186 1331746 1406197 1838873 2078726 2464372 2663492 2812394 3677746 4157452 4928744 5326984 5624788 7355492 8009209 8314904 10473581 11249576 14170139 14710984 16018418 20947162 23905349 28340278 32036836 41894324 47810698 56680556 64073672 83788648 95621396 113361112 136156553 184211807 191242792 240892363 272313106 368423614 481784726 544626212 736847228 963569452 1089252424 1473694456 1927138904 3131600719 6263201438 12526402876 25052805752