252020808 has 80 divisors (see below), whose sum is σ = 760216380. Its totient is φ = 77542272.

The previous prime is 252020803. The next prime is 252020827. The reversal of 252020808 is 808020252.

It can be written as a sum of positive squares in 2 ways, for example, as 251476164 + 544644 = 15858^2 + 738^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (252020803) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6535 + ... + 23382.

Almost surely, 2^252020808 is an apocalyptic number.

It is an amenable number.

252020808 is an abundant number, since it is smaller than the sum of its proper divisors (508195572).

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

252020808 is a wasteful number, since it uses less digits than its factorization.

252020808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29948 (or 29935 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 252020808 is about 15875.1632432552. The cubic root of 252020808 is about 631.6533443150.

The spelling of 252020808 in words is "two hundred fifty-two million, twenty thousand, eight hundred eight".