253246464 has 66 divisors (see below), whose sum is σ = 731270280. Its totient is φ = 84412416.

The previous prime is 253246453. The next prime is 253246489. The reversal of 253246464 is 464642352.

253246464 is a `hidden beast` number, since 2 + 5 + 3 + 2 + 4 + 646 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4524 + ... + 22955.

Almost surely, 2^253246464 is an apocalyptic number.

253246464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

253246464 is an abundant number, since it is smaller than the sum of its proper divisors (478023816).

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

253246464 is a wasteful number, since it uses less digits than its factorization.

253246464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27505 (or 27484 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 253246464 is about 15913.7193641210. The cubic root of 253246464 is about 632.6756647274.

The spelling of 253246464 in words is "two hundred fifty-three million, two hundred forty-six thousand, four hundred sixty-four".