52999639 has 16 divisors (see below), whose sum is σ = 66272256. Its totient is φ = 41176800.

The previous prime is 52999637. The next prime is 52999663. The reversal of 52999639 is 93699925.

It is not a de Polignac number, because 52999639 - 2¹ = 52999637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52999631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32389 + ... + 33985.

It is an arithmetic number, because the mean of its divisors is an integer number (4142016).

Almost surely, 2^52999639 is an apocalyptic number.

52999639 is a deficient number, since it is larger than the sum of its proper divisors (13272617).

52999639 is a wasteful number, since it uses less digits than its factorization.

52999639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046.

The product of its digits is 1180980, while the sum is 52.

The square root of 52999639 is about 7280.0850956565. The cubic root of 52999639 is about 375.6277225779.

It can be divided in two parts, 529996 and 39, that added together give a palindrome (530035).

The spelling of 52999639 in words is "fifty-two million, nine hundred ninety-nine thousand, six hundred thirty-nine".