52639924 has 6 divisors (see below), whose sum is σ = 92119874. Its totient is φ = 26319960.

The previous prime is 52639907. The next prime is 52639933. The reversal of 52639924 is 42993625.

It can be written as a sum of positive squares in only one way, i.e., 37429924 + 15210000 = 6118^2 + 3900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6579987 + ... + 6579994.

Almost surely, 2^52639924 is an apocalyptic number.

It is an amenable number.

52639924 is a deficient number, since it is larger than the sum of its proper divisors (39479950).

52639924 is a wasteful number, since it uses less digits than its factorization.

52639924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13159985 (or 13159983 counting only the distinct ones).

The product of its digits is 116640, while the sum is 40.

The square root of 52639924 is about 7255.3376213654. The cubic root of 52639924 is about 374.7759823510.

The spelling of 52639924 in words is "fifty-two million, six hundred thirty-nine thousand, nine hundred twenty-four".