52768138 has 16 divisors (see below), whose sum is σ = 83609856. Its totient is φ = 24937920.

The previous prime is 52768127. The next prime is 52768151. The reversal of 52768138 is 83186725.

It is a self number, because there is not a number n which added to its sum of digits gives 52768138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7231 + ... + 12562.

It is an arithmetic number, because the mean of its divisors is an integer number (5225616).

Almost surely, 2^52768138 is an apocalyptic number.

52768138 is a deficient number, since it is larger than the sum of its proper divisors (30841718).

52768138 is a wasteful number, since it uses less digits than its factorization.

52768138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19869.

The product of its digits is 80640, while the sum is 40.

The square root of 52768138 is about 7264.1680872623. The cubic root of 52768138 is about 375.0800137411.

The spelling of 52768138 in words is "fifty-two million, seven hundred sixty-eight thousand, one hundred thirty-eight".