52689531564 has 36 divisors (see below), whose sum is σ = 138120297224. Its totient is φ = 17563176864.

The previous prime is 52689531563. The next prime is 52689531611. The reversal of 52689531564 is 46513598625.

52689531564 is a `hidden beast` number, since 5 + 26 + 8 + 9 + 53 + 1 + 564 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 52689531564.

It is not an unprimeable number, because it can be changed into a prime (52689531563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27102697 + ... + 27104640.

Almost surely, 2^52689531564 is an apocalyptic number.

52689531564 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

52689531564 is an abundant number, since it is smaller than the sum of its proper divisors (85430765660).

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

52689531564 is a wasteful number, since it uses less digits than its factorization.

52689531564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54207356 (or 54207342 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 54.

The spelling of 52689531564 in words is "fifty-two billion, six hundred eighty-nine million, five hundred thirty-one thousand, five hundred sixty-four".