53136868 has 6 divisors (see below), whose sum is σ = 92989526. Its totient is φ = 26568432.

The previous prime is 53136833. The next prime is 53136893. The reversal of 53136868 is 86863135.

It can be written as a sum of positive squares in only one way, i.e., 43138624 + 9998244 = 6568^2 + 3162^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 53136868.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6642105 + ... + 6642112.

Almost surely, 2^53136868 is an apocalyptic number.

It is an amenable number.

53136868 is a deficient number, since it is larger than the sum of its proper divisors (39852658).

53136868 is a wasteful number, since it uses less digits than its factorization.

53136868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284221 (or 13284219 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 53136868 is about 7289.5039611760. The cubic root of 53136868 is about 375.9516404532.

The spelling of 53136868 in words is "fifty-three million, one hundred thirty-six thousand, eight hundred sixty-eight".