253286788 has 48 divisors (see below), whose sum is σ = 464531760. Its totient is φ = 120766464.

The previous prime is 253286779. The next prime is 253286809. The reversal of 253286788 is 887682352.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4656964 + 248629824 = 2158^2 + 15768^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2241420 + ... + 2241532.

It is an arithmetic number, because the mean of its divisors is an integer number (9677745).

Almost surely, 2^253286788 is an apocalyptic number.

It is an amenable number.

253286788 is a deficient number, since it is larger than the sum of its proper divisors (211244972).

253286788 is a wasteful number, since it uses less digits than its factorization.

253286788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 374 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 49.

The square root of 253286788 is about 15914.9862708078. The cubic root of 253286788 is about 632.7092428989.

The spelling of 253286788 in words is "two hundred fifty-three million, two hundred eighty-six thousand, seven hundred eighty-eight".