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25765767352 = 23134738313763
BaseRepresentation
bin10111111111110000…
…100110100010111000
32110111122211121010201
4113333300212202320
5410232014023402
615500413451544
71601333260153
oct277760464270
973448747121
1025765767352
11aa22116406
124bb0aa0bb4
1325780919b0
141365d60c9a
15a0c036687
hex5ffc268b8

25765767352 has 64 divisors (see below), whose sum is σ = 53276590080. Its totient is φ = 11607641472.

The previous prime is 25765767347. The next prime is 25765767403. The reversal of 25765767352 is 25376756752.

25765767352 is nontrivially palindromic in base 12.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25765767293 and 25765767302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1865223 + ... + 1878985.

It is an arithmetic number, because the mean of its divisors is an integer number (832446720).

Almost surely, 225765767352 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 25765767352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26638295040).

25765767352 is an abundant number, since it is smaller than the sum of its proper divisors (27510822728).

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

25765767352 is a wasteful number, since it uses less digits than its factorization.

25765767352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14212 (or 14208 counting only the distinct ones).

The product of its digits is 18522000, while the sum is 55.

The spelling of 25765767352 in words is "twenty-five billion, seven hundred sixty-five million, seven hundred sixty-seven thousand, three hundred fifty-two".

Divisors: 1 2 4 8 13 26 47 52 94 104 188 376 383 611 766 1222 1532 2444 3064 4888 4979 9958 13763 18001 19916 27526 36002 39832 55052 72004 110104 144008 178919 234013 357838 468026 646861 715676 936052 1293722 1431352 1872104 2587444 5174888 5271229 8409193 10542458 16818386 21084916 33636772 42169832 67273544 68525977 137051954 247747763 274103908 495495526 548207816 990991052 1981982104 3220720919 6441441838 12882883676 25765767352