251352242425320 has 64 divisors (see below), whose sum is σ = 759994181867520. Its totient is φ = 66499490905344.

The previous prime is 251352242425313. The next prime is 251352242425327. The reversal of 251352242425320 is 23524242253152.

It is an interprime number because it is at equal distance from previous prime (251352242425313) and next prime (251352242425327).

It is not an unprimeable number, because it can be changed into a prime (251352242425327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8246449407 + ... + 8246479886.

It is an arithmetic number, because the mean of its divisors is an integer number (11874909091680).

Almost surely, 2^{251352242425320} is an apocalyptic number.

251352242425320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

251352242425320 is an abundant number, since it is smaller than the sum of its proper divisors (508641939442200).

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

251352242425320 is a wasteful number, since it uses less digits than its factorization.

251352242425320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16492929434 (or 16492929430 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 42.

Adding to 251352242425320 its reverse (23524242253152), we get a palindrome (274876484678472).

The spelling of 251352242425320 in words is "two hundred fifty-one trillion, three hundred fifty-two billion, two hundred forty-two million, four hundred twenty-five thousand, three hundred twenty".