52144636 has 12 divisors (see below), whose sum is σ = 91866600. Its totient is φ = 25897040.

The previous prime is 52144597. The next prime is 52144643. The reversal of 52144636 is 63644125.

It is a junction number, because it is equal to n+sod(n) for n = 52144598 and 52144607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43150 + ... + 44341.

It is an arithmetic number, because the mean of its divisors is an integer number (7655550).

Almost surely, 2^52144636 is an apocalyptic number.

It is an amenable number.

52144636 is a deficient number, since it is larger than the sum of its proper divisors (39721964).

52144636 is a wasteful number, since it uses less digits than its factorization.

52144636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87644 (or 87642 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 52144636 is about 7221.1242891949. The cubic root of 52144636 is about 373.5968565321.

The spelling of 52144636 in words is "fifty-two million, one hundred forty-four thousand, six hundred thirty-six".