52502810820813 has 64 divisors (see below), whose sum is σ = 80525018112000. Its totient is φ = 33782747023872.

The previous prime is 52502810820799. The next prime is 52502810820833. The reversal of 52502810820813 is 31802801820525.

52502810820813 is a `hidden beast` number, since 5 + 2 + 502 + 8 + 108 + 20 + 8 + 13 = 666.

It is not a de Polignac number, because 52502810820813 - 2¹⁷ = 52502810689741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52502810820833) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 988187233 + ... + 988240361.

It is an arithmetic number, because the mean of its divisors is an integer number (1258203408000).

Almost surely, 2^{52502810820813} is an apocalyptic number.

It is an amenable number.

52502810820813 is a deficient number, since it is larger than the sum of its proper divisors (28022207291187).

52502810820813 is a wasteful number, since it uses less digits than its factorization.

52502810820813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61091 (or 61085 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 45.

The spelling of 52502810820813 in words is "fifty-two trillion, five hundred two billion, eight hundred ten million, eight hundred twenty thousand, eight hundred thirteen".