25648482432 has 64 divisors (see below), whose sum is σ = 71714527200. Its totient is φ = 8099518464.

The previous prime is 25648482317. The next prime is 25648482469. The reversal of 25648482432 is 23428484652.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×25648482432² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1750413 + ... + 1765004.

Almost surely, 2^25648482432 is an apocalyptic number.

It is an amenable number.

25648482432 is an abundant number, since it is smaller than the sum of its proper divisors (46066044768).

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

25648482432 is a wasteful number, since it uses less digits than its factorization.

25648482432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515453 (or 3515441 counting only the distinct ones).

The product of its digits is 2949120, while the sum is 48.

The spelling of 25648482432 in words is "twenty-five billion, six hundred forty-eight million, four hundred eighty-two thousand, four hundred thirty-two".