52778862 has 24 divisors (see below), whose sum is σ = 114866856. Its totient is φ = 17514096.

The previous prime is 52778857. The next prime is 52778881. The reversal of 52778862 is 26887725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2373 + ... + 10544.

It is an arithmetic number, because the mean of its divisors is an integer number (4786119).

Almost surely, 2^52778862 is an apocalyptic number.

52778862 is an abundant number, since it is smaller than the sum of its proper divisors (62087994).

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

52778862 is a wasteful number, since it uses less digits than its factorization.

52778862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152 (or 13149 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 52778862 is about 7264.9061934756. The cubic root of 52778862 is about 375.1054210276.

The spelling of 52778862 in words is "fifty-two million, seven hundred seventy-eight thousand, eight hundred sixty-two".