25496230464 has 112 divisors (see below), whose sum is σ = 75502008000. Its totient is φ = 8436630528.

The previous prime is 25496230399. The next prime is 25496230481. The reversal of 25496230464 is 46403269452.

25496230464 is a `hidden beast` number, since 2 + 549 + 62 + 3 + 0 + 46 + 4 = 666.

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, 182887 + ... + 290585.

Almost surely, 2^25496230464 is an apocalyptic number.

25496230464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25496230464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37751004000).

25496230464 is an abundant number, since it is smaller than the sum of its proper divisors (50005777536).

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

25496230464 is a wasteful number, since it uses less digits than its factorization.

25496230464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107857 (or 107841 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 25496230464 in words is "twenty-five billion, four hundred ninety-six million, two hundred thirty thousand, four hundred sixty-four".