25461576408 has 16 divisors (see below), whose sum is σ = 63653941080. Its totient is φ = 8487192128.

The previous prime is 25461576383. The next prime is 25461576409. The reversal of 25461576408 is 80467516452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25461576409) 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, 530449485 + ... + 530449532.

Almost surely, 2^25461576408 is an apocalyptic number.

It is an amenable number.

25461576408 is an abundant number, since it is smaller than the sum of its proper divisors (38192364672).

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

25461576408 is a wasteful number, since it uses less digits than its factorization.

25461576408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060899026 (or 1060899022 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 48.

The spelling of 25461576408 in words is "twenty-five billion, four hundred sixty-one million, five hundred seventy-six thousand, four hundred eight".