251552325 has 12 divisors (see below), whose sum is σ = 415899968. Its totient is φ = 134161200.

The previous prime is 251552303. The next prime is 251552339. The reversal of 251552325 is 523255152.

It is not a de Polignac number, because 251552325 - 2⁹ = 251551813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 251552292 and 251552301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1676941 + ... + 1677090.

Almost surely, 2^251552325 is an apocalyptic number.

251552325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251552325 is a deficient number, since it is larger than the sum of its proper divisors (164347643).

251552325 is a wasteful number, since it uses less digits than its factorization.

251552325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354044 (or 3354039 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 251552325 is about 15860.4011613830. The cubic root of 251552325 is about 631.2617068051.

The spelling of 251552325 in words is "two hundred fifty-one million, five hundred fifty-two thousand, three hundred twenty-five".