52639365 has 8 divisors (see below), whose sum is σ = 84223008. Its totient is φ = 28074320.

The previous prime is 52639357. The next prime is 52639369. The reversal of 52639365 is 56393625.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52639365 - 2³ = 52639357 is a prime.

It is a super-3 number, since 3×52639365³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52639369) 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, 1754631 + ... + 1754660.

It is an arithmetic number, because the mean of its divisors is an integer number (10527876).

Almost surely, 2^52639365 is an apocalyptic number.

It is an amenable number.

52639365 is a deficient number, since it is larger than the sum of its proper divisors (31583643).

52639365 is a wasteful number, since it uses less digits than its factorization.

52639365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509299.

The product of its digits is 145800, while the sum is 39.

The square root of 52639365 is about 7255.2990979008. The cubic root of 52639365 is about 374.7746557248.

The spelling of 52639365 in words is "fifty-two million, six hundred thirty-nine thousand, three hundred sixty-five".