253321362611560 has 32 divisors (see below), whose sum is σ = 570227178011040. Its totient is φ = 101283369553984.

The previous prime is 253321362611503. The next prime is 253321362611567. The reversal of 253321362611560 is 65116263123352.

It is a self number, because there is not a number n which added to its sum of digits gives 253321362611560.

It is not an unprimeable number, because it can be changed into a prime (253321362611567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411643242 + ... + 1411822681.

It is an arithmetic number, because the mean of its divisors is an integer number (17819599312845).

Almost surely, 2^{253321362611560} is an apocalyptic number.

253321362611560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253321362611560 is an abundant number, since it is smaller than the sum of its proper divisors (316905815399480).

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

253321362611560 is a wasteful number, since it uses less digits than its factorization.

253321362611560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823468177 (or 2823468173 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 253321362611560 in words is "two hundred fifty-three trillion, three hundred twenty-one billion, three hundred sixty-two million, six hundred eleven thousand, five hundred sixty".