25912880 has 40 divisors (see below), whose sum is σ = 68855712. Its totient is φ = 8884224.

The previous prime is 25912847. The next prime is 25912891. The reversal of 25912880 is 8821952.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 25912880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22577 + ... + 23696.

Almost surely, 2^25912880 is an apocalyptic number.

25912880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25912880 is an abundant number, since it is smaller than the sum of its proper divisors (42942832).

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

25912880 is a wasteful number, since it uses less digits than its factorization.

25912880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46293 (or 46287 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 25912880 is about 5090.4695264779. The cubic root of 25912880 is about 295.9183485523.

The spelling of 25912880 in words is "twenty-five million, nine hundred twelve thousand, eight hundred eighty".