251425252 has 48 divisors (see below), whose sum is σ = 514931200. Its totient is φ = 106375680.

The previous prime is 251425247. The next prime is 251425301. The reversal of 251425252 is 252524152.

It is a self number, because there is not a number n which added to its sum of digits gives 251425252.

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 15 ways as a sum of consecutive naturals, for example, 26524 + ... + 34732.

Almost surely, 2^251425252 is an apocalyptic number.

It is an amenable number.

251425252 is an abundant number, since it is smaller than the sum of its proper divisors (263505948).

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

251425252 is a wasteful number, since it uses less digits than its factorization.

251425252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276 (or 8274 counting only the distinct ones).

The product of its digits is 8000, while the sum is 28.

The square root of 251425252 is about 15856.3946721819. The cubic root of 251425252 is about 631.1553938277.

It can be divided in two parts, 251 and 425252, that added together give a triangular number (425503 = T₉₂₂).

The spelling of 251425252 in words is "two hundred fifty-one million, four hundred twenty-five thousand, two hundred fifty-two".