52688668 has 6 divisors (see below), whose sum is σ = 92205176. Its totient is φ = 26344332.

The previous prime is 52688663. The next prime is 52688677. The reversal of 52688668 is 86688625.

It is a happy number.

It is a super-2 number, since 2×52688668² = 5552191471228448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52688663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6586080 + ... + 6586087.

Almost surely, 2^52688668 is an apocalyptic number.

It is an amenable number.

52688668 is a deficient number, since it is larger than the sum of its proper divisors (39516508).

52688668 is a wasteful number, since it uses less digits than its factorization.

52688668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13172171 (or 13172169 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 52688668 is about 7258.6960261468. The cubic root of 52688668 is about 374.8916261648.

The spelling of 52688668 in words is "fifty-two million, six hundred eighty-eight thousand, six hundred sixty-eight".