25905760 has 24 divisors (see below), whose sum is σ = 61202736. Its totient is φ = 10362240.

The previous prime is 25905743. The next prime is 25905767. The reversal of 25905760 is 6750952.

It is a super-2 number, since 2×25905760² = 1342216802355200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25905767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80796 + ... + 81115.

It is an arithmetic number, because the mean of its divisors is an integer number (2550114).

Almost surely, 2^25905760 is an apocalyptic number.

25905760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25905760 is an abundant number, since it is smaller than the sum of its proper divisors (35296976).

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

25905760 is a wasteful number, since it uses less digits than its factorization.

25905760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161926 (or 161918 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 25905760 is about 5089.7701323341. The cubic root of 25905760 is about 295.8912432204.

The spelling of 25905760 in words is "twenty-five million, nine hundred five thousand, seven hundred sixty".