25719647232 has 88 divisors (see below), whose sum is σ = 68599882800. Its totient is φ = 8567259136.

The previous prime is 25719647227. The next prime is 25719647251. The reversal of 25719647232 is 23274691752.

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, 8013244 + ... + 8016452.

Almost surely, 2^25719647232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25719647232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34299941400).

25719647232 is an abundant number, since it is smaller than the sum of its proper divisors (42880235568).

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

25719647232 is a wasteful number, since it uses less digits than its factorization.

25719647232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5841 (or 5823 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The spelling of 25719647232 in words is "twenty-five billion, seven hundred nineteen million, six hundred forty-seven thousand, two hundred thirty-two".