52643236 has 18 divisors (see below), whose sum is σ = 95418050. Its totient is φ = 25412352.

The previous prime is 52643219. The next prime is 52643249. The reversal of 52643236 is 63234625.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2856100 + 49787136 = 1690^2 + 7056^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52643198 and 52643207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4461 + ... + 11188.

Almost surely, 2^52643236 is an apocalyptic number.

It is an amenable number.

52643236 is a deficient number, since it is larger than the sum of its proper divisors (42774814).

52643236 is a wasteful number, since it uses less digits than its factorization.

52643236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711 (or 15680 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 52643236 is about 7255.5658635285. The cubic root of 52643236 is about 374.7838422410.

The spelling of 52643236 in words is "fifty-two million, six hundred forty-three thousand, two hundred thirty-six".