52639704 has 48 divisors (see below), whose sum is σ = 153535200. Its totient is φ = 16196544.

The previous prime is 52639703. The next prime is 52639721. The reversal of 52639704 is 40793625.

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 (52639703) 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, 27184 + ... + 29055.

It is an arithmetic number, because the mean of its divisors is an integer number (3198650).

Almost surely, 2^52639704 is an apocalyptic number.

It is an amenable number.

52639704 is an abundant number, since it is smaller than the sum of its proper divisors (100895496).

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

52639704 is a wasteful number, since it uses less digits than its factorization.

52639704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56264 (or 56257 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 52639704 is about 7255.3224600978. The cubic root of 52639704 is about 374.7754602452.

The spelling of 52639704 in words is "fifty-two million, six hundred thirty-nine thousand, seven hundred four".