253639804 has 12 divisors (see below), whose sum is σ = 484221528. Its totient is φ = 115290800.

The previous prime is 253639781. The next prime is 253639811. The reversal of 253639804 is 408936352.

253639804 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2882227 + ... + 2882314.

It is an arithmetic number, because the mean of its divisors is an integer number (40351794).

Almost surely, 2^253639804 is an apocalyptic number.

It is an amenable number.

253639804 is a deficient number, since it is larger than the sum of its proper divisors (230581724).

253639804 is a wasteful number, since it uses less digits than its factorization.

253639804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5764556 (or 5764554 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 253639804 is about 15926.0730878644. The cubic root of 253639804 is about 633.0030505640.

The spelling of 253639804 in words is "two hundred fifty-three million, six hundred thirty-nine thousand, eight hundred four".