253311257564 has 12 divisors (see below), whose sum is σ = 443444838144. Its totient is φ = 126612732384.

The previous prime is 253311257543. The next prime is 253311257593. The reversal of 253311257564 is 465752113352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10710812 + ... + 10734435.

It is an arithmetic number, because the mean of its divisors is an integer number (36953736512).

Almost surely, 2^253311257564 is an apocalyptic number.

It is an amenable number.

253311257564 is a deficient number, since it is larger than the sum of its proper divisors (190133580580).

253311257564 is a wasteful number, since it uses less digits than its factorization.

253311257564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21448204 (or 21448202 counting only the distinct ones).

The product of its digits is 756000, while the sum is 44.

The spelling of 253311257564 in words is "two hundred fifty-three billion, three hundred eleven million, two hundred fifty-seven thousand, five hundred sixty-four".