25382921280 has 56 divisors (see below), whose sum is σ = 80590778112. Its totient is φ = 6768778752.

The previous prime is 25382921273. The next prime is 25382921293. The reversal of 25382921280 is 8212928352.

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, 13219312 + ... + 13221231.

Almost surely, 2^25382921280 is an apocalyptic number.

25382921280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25382921280 is an abundant number, since it is smaller than the sum of its proper divisors (55207856832).

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

25382921280 is a wasteful number, since it uses less digits than its factorization.

25382921280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26440563 (or 26440553 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 25382921280 in words is "twenty-five billion, three hundred eighty-two million, nine hundred twenty-one thousand, two hundred eighty".