25972752288 has 48 divisors (see below), whose sum is σ = 77918258880. Its totient is φ = 7420786176.

The previous prime is 25972752233. The next prime is 25972752307. The reversal of 25972752288 is 88225727952.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×25972752288² (a number of 22 digits) contains 22 as substring.

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, 19324293 + ... + 19325636.

It is an arithmetic number, because the mean of its divisors is an integer number (1623297060).

Almost surely, 2^25972752288 is an apocalyptic number.

25972752288 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25972752288 is an abundant number, since it is smaller than the sum of its proper divisors (51945506592).

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

25972752288 is a wasteful number, since it uses less digits than its factorization.

25972752288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38649949 (or 38649941 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 25972752288 in words is "twenty-five billion, nine hundred seventy-two million, seven hundred fifty-two thousand, two hundred eighty-eight".