25320118390 has 48 divisors (see below), whose sum is σ = 55807628400. Its totient is φ = 8224276032.

The previous prime is 25320118387. The next prime is 25320118433. The reversal of 25320118390 is 9381102352.

It is a super-2 number, since 2×25320118390² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1350525 + ... + 1369144.

It is an arithmetic number, because the mean of its divisors is an integer number (1162658925).

Almost surely, 2^25320118390 is an apocalyptic number.

25320118390 is an abundant number, since it is smaller than the sum of its proper divisors (30487510010).

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

25320118390 is a wasteful number, since it uses less digits than its factorization.

25320118390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719709 (or 2719702 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 25320118390 in words is "twenty-five billion, three hundred twenty million, one hundred eighteen thousand, three hundred ninety".