53879639 has 16 divisors (see below), whose sum is σ = 61737984. Its totient is φ = 46543200.

The previous prime is 53879603. The next prime is 53879677. The reversal of 53879639 is 93697835.

It is not a de Polignac number, because 53879639 - 2¹² = 53875543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53879689) 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, 43154 + ... + 44384.

It is an arithmetic number, because the mean of its divisors is an integer number (3858624).

Almost surely, 2^53879639 is an apocalyptic number.

53879639 is a deficient number, since it is larger than the sum of its proper divisors (7858345).

53879639 is a wasteful number, since it uses less digits than its factorization.

53879639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438.

The product of its digits is 1224720, while the sum is 50.

The square root of 53879639 is about 7340.2751310833. The cubic root of 53879639 is about 377.6952813295.

It can be divided in two parts, 538796 and 39, that added together give a palindrome (538835).

The spelling of 53879639 in words is "fifty-three million, eight hundred seventy-nine thousand, six hundred thirty-nine".