52639715 has 8 divisors (see below), whose sum is σ = 64875120. Its totient is φ = 40973472.

The previous prime is 52639703. The next prime is 52639721. The reversal of 52639715 is 51793625.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52639715 - 2⁶ = 52639651 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142085 + ... + 142454.

It is an arithmetic number, because the mean of its divisors is an integer number (8109390).

Almost surely, 2^52639715 is an apocalyptic number.

52639715 is a deficient number, since it is larger than the sum of its proper divisors (12235405).

52639715 is a wasteful number, since it uses less digits than its factorization.

52639715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284581.

The product of its digits is 56700, while the sum is 38.

The square root of 52639715 is about 7255.3232181620. The cubic root of 52639715 is about 374.7754863506.

The spelling of 52639715 in words is "fifty-two million, six hundred thirty-nine thousand, seven hundred fifteen".