251314322125 has 32 divisors (see below), whose sum is σ = 317427102720. Its totient is φ = 198633168000.

The previous prime is 251314322113. The next prime is 251314322137. The reversal of 251314322125 is 521223413152.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (251314322113) and next prime (251314322137).

It is not a de Polignac number, because 251314322125 - 2⁷ = 251314321997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5526481 + ... + 5571769.

It is an arithmetic number, because the mean of its divisors is an integer number (9919596960).

Almost surely, 2^251314322125 is an apocalyptic number.

251314322125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251314322125 is a deficient number, since it is larger than the sum of its proper divisors (66112780595).

251314322125 is a wasteful number, since it uses less digits than its factorization.

251314322125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45838 (or 45828 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

Adding to 251314322125 its reverse (521223413152), we get a palindrome (772537735277).

The spelling of 251314322125 in words is "two hundred fifty-one billion, three hundred fourteen million, three hundred twenty-two thousand, one hundred twenty-five".