52313688 has 160 divisors (see below), whose sum is σ = 176563200. Its totient is φ = 14136768.

The previous prime is 52313687. The next prime is 52313699. The reversal of 52313688 is 88631325.

It is a super-2 number, since 2×52313688² = 5473443904322688, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52313683) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 85881 + ... + 86487.

It is an arithmetic number, because the mean of its divisors is an integer number (1103520).

Almost surely, 2^52313688 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 52313688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88281600).

52313688 is an abundant number, since it is smaller than the sum of its proper divisors (124249512).

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

52313688 is a wasteful number, since it uses less digits than its factorization.

52313688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 638 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 52313688 is about 7232.8201968527. The cubic root of 52313688 is about 374.0001525160. Note that the first 3 decimals are identical.

The spelling of 52313688 in words is "fifty-two million, three hundred thirteen thousand, six hundred eighty-eight".