52639020 has 72 divisors (see below), whose sum is σ = 182486304. Its totient is φ = 12031488.

The previous prime is 52639003. The next prime is 52639073. The reversal of 52639020 is 2093625.

52639020 is a `hidden beast` number, since 5 + 2 + 639 + 0 + 20 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19629 + ... + 22148.

It is an arithmetic number, because the mean of its divisors is an integer number (2534532).

Almost surely, 2^52639020 is an apocalyptic number.

It is an amenable number.

52639020 is an abundant number, since it is smaller than the sum of its proper divisors (129847284).

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

52639020 is a wasteful number, since it uses less digits than its factorization.

52639020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41799 (or 41794 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 52639020 is about 7255.2753221363. The cubic root of 52639020 is about 374.7738369615.

The spelling of 52639020 in words is "fifty-two million, six hundred thirty-nine thousand, twenty".