25559002460 has 24 divisors (see below), whose sum is σ = 53677150800. Its totient is φ = 10222982784.

The previous prime is 25559002453. The next prime is 25559002489. The reversal of 25559002460 is 6420095552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452891 + ... + 506189.

It is an arithmetic number, because the mean of its divisors is an integer number (2236547950).

Almost surely, 2^25559002460 is an apocalyptic number.

25559002460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25559002460 is an abundant number, since it is smaller than the sum of its proper divisors (28118148340).

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

25559002460 is a wasteful number, since it uses less digits than its factorization.

25559002460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77285 (or 77283 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 25559002460 in words is "twenty-five billion, five hundred fifty-nine million, two thousand, four hundred sixty".