253604656544 has 48 divisors (see below), whose sum is σ = 501236981280. Its totient is φ = 126307334400.

The previous prime is 253604656523. The next prime is 253604656567. The reversal of 253604656544 is 445656406352.

It is a junction number, because it is equal to n+sod(n) for n = 253604656492 and 253604656501.

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 7 ways as a sum of consecutive naturals, for example, 8760494 + ... + 8789394.

It is an arithmetic number, because the mean of its divisors is an integer number (10442437110).

Almost surely, 2^253604656544 is an apocalyptic number.

It is an amenable number.

253604656544 is a deficient number, since it is larger than the sum of its proper divisors (247632324736).

253604656544 is a wasteful number, since it uses less digits than its factorization.

253604656544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29973 (or 29965 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 50.

The spelling of 253604656544 in words is "two hundred fifty-three billion, six hundred four million, six hundred fifty-six thousand, five hundred forty-four".