25270994320 has 80 divisors (see below), whose sum is σ = 69026956992. Its totient is φ = 8482567680.

The previous prime is 25270994317. The next prime is 25270994351. The reversal of 25270994320 is 2349907252.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1093062 + ... + 1115941.

Almost surely, 2^25270994320 is an apocalyptic number.

25270994320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25270994320 is an abundant number, since it is smaller than the sum of its proper divisors (43755962672).

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

25270994320 is a wasteful number, since it uses less digits than its factorization.

25270994320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209040 (or 2209034 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 25270994320 in words is "twenty-five billion, two hundred seventy million, nine hundred ninety-four thousand, three hundred twenty".