53688817 has 16 divisors (see below), whose sum is σ = 66274432. Its totient is φ = 42353280.

The previous prime is 53688787. The next prime is 53688823. The reversal of 53688817 is 71888635.

It is a cyclic number.

It is not a de Polignac number, because 53688817 - 2²³ = 45300209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53688827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40942 + ... + 42232.

It is an arithmetic number, because the mean of its divisors is an integer number (4142152).

Almost surely, 2^53688817 is an apocalyptic number.

It is an amenable number.

53688817 is a deficient number, since it is larger than the sum of its proper divisors (12585615).

53688817 is a wasteful number, since it uses less digits than its factorization.

53688817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768.

The product of its digits is 322560, while the sum is 46.

The square root of 53688817 is about 7327.2653152455. The cubic root of 53688817 is about 377.2488676624.

The spelling of 53688817 in words is "fifty-three million, six hundred eighty-eight thousand, eight hundred seventeen".