251252625 has 32 divisors (see below), whose sum is σ = 450253440. Its totient is φ = 123691200.

The previous prime is 251252593. The next prime is 251252653. The reversal of 251252625 is 526252152.

It is not a de Polignac number, because 251252625 - 2⁵ = 251252593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 251252592 and 251252601.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20895 + ... + 30644.

It is an arithmetic number, because the mean of its divisors is an integer number (14070420).

Almost surely, 2^251252625 is an apocalyptic number.

251252625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251252625 is a deficient number, since it is larger than the sum of its proper divisors (199000815).

251252625 is a wasteful number, since it uses less digits than its factorization.

251252625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51570 (or 51560 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 251252625 is about 15850.9502869702. The cubic root of 251252625 is about 631.0109116451.

The spelling of 251252625 in words is "two hundred fifty-one million, two hundred fifty-two thousand, six hundred twenty-five".