25316320156988 has 24 divisors (see below), whose sum is σ = 50633023064064. Its totient is φ = 10849769478000.

The previous prime is 25316320156927. The next prime is 25316320156997. The reversal of 25316320156988 is 88965102361352.

It is a super-2 number, since 2×25316320156988² (a number of 28 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 7 ways as a sum of consecutive naturals, for example, 428693 + ... + 7128563.

It is an arithmetic number, because the mean of its divisors is an integer number (2109709294336).

Almost surely, 2^{25316320156988} is an apocalyptic number.

25316320156988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25316320156988 is an abundant number, since it is smaller than the sum of its proper divisors (25316702907076).

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

25316320156988 is a wasteful number, since it uses less digits than its factorization.

25316320156988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834833 (or 6834831 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 59.

The spelling of 25316320156988 in words is "twenty-five trillion, three hundred sixteen billion, three hundred twenty million, one hundred fifty-six thousand, nine hundred eighty-eight".