251252325 has 18 divisors (see below), whose sum is σ = 450021234. Its totient is φ = 134001120.

The previous prime is 251252297. The next prime is 251252327. The reversal of 251252325 is 523252152.

It can be written as a sum of positive squares in 3 ways, for example, as 28227969 + 223024356 = 5313^2 + 14934^2 .

It is not a de Polignac number, because 251252325 - 2¹⁷ = 251121253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251252327) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 558114 + ... + 558563.

Almost surely, 2^251252325 is an apocalyptic number.

251252325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251252325 is a deficient number, since it is larger than the sum of its proper divisors (198768909).

251252325 is a wasteful number, since it uses less digits than its factorization.

251252325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116693 (or 1116685 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 251252325 is about 15850.9408238123. The cubic root of 251252325 is about 631.0106604990.

The spelling of 251252325 in words is "two hundred fifty-one million, two hundred fifty-two thousand, three hundred twenty-five".