252625969 has 4 divisors (see below), whose sum is σ = 258787620. Its totient is φ = 246464320.

The previous prime is 252625907. The next prime is 252626027. The reversal of 252625969 is 969526252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 115455025 + 137170944 = 10745^2 + 11712^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252625969 is a prime.

It is a super-2 number, since 2×252625969² = 127639760426377922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252622969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3080764 + ... + 3080845.

It is an arithmetic number, because the mean of its divisors is an integer number (64696905).

Almost surely, 2^252625969 is an apocalyptic number.

It is an amenable number.

252625969 is a deficient number, since it is larger than the sum of its proper divisors (6161651).

252625969 is an equidigital number, since it uses as much as digits as its factorization.

252625969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6161650.

The product of its digits is 583200, while the sum is 46.

The square root of 252625969 is about 15894.2118080765. The cubic root of 252625969 is about 632.1585227315.

The spelling of 252625969 in words is "two hundred fifty-two million, six hundred twenty-five thousand, nine hundred sixty-nine".