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25130016630 = 2325397703331
BaseRepresentation
bin10111011001110111…
…011001111101110110
32101212100120010002200
4113121313121331312
5402431241013010
615313343245330
71546513421415
oct273167317566
971770503080
1025130016630
11a72626a494
124a53ba9846
1324a6459734
14130574d47c
159c1305cc0
hex5d9dd9f76

25130016630 has 48 divisors (see below), whose sum is σ = 65502715824. Its totient is φ = 6684448320.

The previous prime is 25130016623. The next prime is 25130016631. The reversal of 25130016630 is 3661003152.

25130016630 is a `hidden beast` number, since 2 + 5 + 13 + 0 + 0 + 16 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25130016594 and 25130016603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25130016631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 315936 + ... + 387395.

It is an arithmetic number, because the mean of its divisors is an integer number (1364639913).

Almost surely, 225130016630 is an apocalyptic number.

25130016630 is an abundant number, since it is smaller than the sum of its proper divisors (40372699194).

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

25130016630 is a wasteful number, since it uses less digits than its factorization.

25130016630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703741 (or 703738 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 25130016630 its reverse (3661003152), we get a palindrome (28791019782).

The spelling of 25130016630 in words is "twenty-five billion, one hundred thirty million, sixteen thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 397 794 1191 1985 2382 3573 3970 5955 7146 11910 17865 35730 703331 1406662 2109993 3516655 4219986 6329979 7033310 10549965 12659958 21099930 31649895 63299790 279222407 558444814 837667221 1396112035 1675334442 2513001663 2792224070 4188336105 5026003326 8376672210 12565008315 25130016630