52685136 has 60 divisors (see below), whose sum is σ = 168512032. Its totient is φ = 15052608.

The previous prime is 52685069. The next prime is 52685137. The reversal of 52685136 is 63158625.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 52685136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52685137) 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, 25126 + ... + 27141.

Almost surely, 2^52685136 is an apocalyptic number.

52685136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52685136 is an abundant number, since it is smaller than the sum of its proper divisors (115826896).

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

52685136 is a wasteful number, since it uses less digits than its factorization.

52685136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52288 (or 52279 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 52685136 is about 7258.4527276824. The cubic root of 52685136 is about 374.8832489883.

It can be divided in two parts, 5268 and 5136, that added together give a square (10404 = 102²).

The spelling of 52685136 in words is "fifty-two million, six hundred eighty-five thousand, one hundred thirty-six".