52775808 has 32 divisors (see below), whose sum is σ = 140186760. Its totient is φ = 17591808.

The previous prime is 52775773. The next prime is 52775819. The reversal of 52775808 is 80857725.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 52775808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68335 + ... + 69102.

Almost surely, 2^52775808 is an apocalyptic number.

It is an amenable number.

52775808 is an abundant number, since it is smaller than the sum of its proper divisors (87410952).

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

52775808 is a wasteful number, since it uses less digits than its factorization.

52775808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137454 (or 137442 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 42.

The square root of 52775808 is about 7264.6960018985. The cubic root of 52775808 is about 375.0981858454.

The spelling of 52775808 in words is "fifty-two million, seven hundred seventy-five thousand, eight hundred eight".