53688136 has 8 divisors (see below), whose sum is σ = 100665270. Its totient is φ = 26844064.

The previous prime is 53688133. The next prime is 53688137. The reversal of 53688136 is 63188635.

53688136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43639236 + 10048900 = 6606^2 + 3170^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (53688133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3355501 + ... + 3355516.

Almost surely, 2^53688136 is an apocalyptic number.

It is an amenable number.

53688136 is a deficient number, since it is larger than the sum of its proper divisors (46977134).

53688136 is a wasteful number, since it uses less digits than its factorization.

53688136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6711023 (or 6711019 counting only the distinct ones).

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

The square root of 53688136 is about 7327.2188448278. The cubic root of 53688136 is about 377.2472726216.

It can be divided in two parts, 53688 and 136, that added together give a square (53824 = 232²).

The spelling of 53688136 in words is "fifty-three million, six hundred eighty-eight thousand, one hundred thirty-six".