52639299 has 12 divisors (see below), whose sum is σ = 76112400. Its totient is φ = 35056944.

The previous prime is 52639297. The next prime is 52639309. The reversal of 52639299 is 99293625.

52639299 is a `hidden beast` number, since 5 + 2 + 639 + 2 + 9 + 9 = 666.

It is not a de Polignac number, because 52639299 - 2¹ = 52639297 is a prime.

It is a super-2 number, since 2×52639299² = 5541791598422802, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (52639297) 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, 8682 + ... + 13440.

It is an arithmetic number, because the mean of its divisors is an integer number (6342700).

Almost surely, 2^52639299 is an apocalyptic number.

52639299 is a deficient number, since it is larger than the sum of its proper divisors (23473101).

52639299 is a wasteful number, since it uses less digits than its factorization.

52639299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5994 (or 5991 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 52639299 is about 7255.2945494997. The cubic root of 52639299 is about 374.7744990921.

The spelling of 52639299 in words is "fifty-two million, six hundred thirty-nine thousand, two hundred ninety-nine".