252624645 has 96 divisors (see below), whose sum is σ = 550368000. Its totient is φ = 106517376.

The previous prime is 252624643. The next prime is 252624653. The reversal of 252624645 is 546426252.

252624645 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 2 + 4 + 645 = 666.

It is not a de Polignac number, because 252624645 - 2¹ = 252624643 is a prime.

It is a super-2 number, since 2×252624645² = 127638422522752050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252624643) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 200026 + ... + 201284.

It is an arithmetic number, because the mean of its divisors is an integer number (5733000).

Almost surely, 2^252624645 is an apocalyptic number.

It is an amenable number.

252624645 is an abundant number, since it is smaller than the sum of its proper divisors (297743355).

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

252624645 is a wasteful number, since it uses less digits than its factorization.

252624645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1287 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

The square root of 252624645 is about 15894.1701576396. The cubic root of 252624645 is about 632.1574183593.

The spelling of 252624645 in words is "two hundred fifty-two million, six hundred twenty-four thousand, six hundred forty-five".