52515136 has 56 divisors (see below), whose sum is σ = 108951776. Its totient is φ = 25090560.

The previous prime is 52515101. The next prime is 52515139. The reversal of 52515136 is 63151525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52515139) 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, 158491 + ... + 158821.

Almost surely, 2^52515136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52515136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54475888).

52515136 is an abundant number, since it is smaller than the sum of its proper divisors (56436640).

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

52515136 is a wasteful number, since it uses less digits than its factorization.

52515136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 437 counting only the distinct ones).

The product of its digits is 4500, while the sum is 28.

The square root of 52515136 is about 7246.7327810538. The cubic root of 52515136 is about 374.4796005295.

The spelling of 52515136 in words is "fifty-two million, five hundred fifteen thousand, one hundred thirty-six".