53688786 has 16 divisors (see below), whose sum is σ = 108329184. Its totient is φ = 17737664.

The previous prime is 53688769. The next prime is 53688787. The reversal of 53688786 is 68788635.

It is not an unprimeable number, because it can be changed into a prime (53688787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38916 + ... + 40271.

It is an arithmetic number, because the mean of its divisors is an integer number (6770574).

Almost surely, 2^53688786 is an apocalyptic number.

53688786 is an abundant number, since it is smaller than the sum of its proper divisors (54640398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53688786 is a wasteful number, since it uses less digits than its factorization.

53688786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79305.

The product of its digits is 1935360, while the sum is 51.

The square root of 53688786 is about 7327.2631998585. The cubic root of 53688786 is about 377.2487950544.

The spelling of 53688786 in words is "fifty-three million, six hundred eighty-eight thousand, seven hundred eighty-six".