52806780 has 72 divisors (see below), whose sum is σ = 172509792. Its totient is φ = 12998016.

The previous prime is 52806779. The next prime is 52806791. The reversal of 52806780 is 8760825.

52806780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8944 + ... + 13623.

Almost surely, 2^52806780 is an apocalyptic number.

It is an amenable number.

52806780 is an abundant number, since it is smaller than the sum of its proper divisors (119703012).

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

52806780 is a wasteful number, since it uses less digits than its factorization.

52806780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595 (or 22590 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 52806780 is about 7266.8273682536. The cubic root of 52806780 is about 375.1715481780.

The spelling of 52806780 in words is "fifty-two million, eight hundred six thousand, seven hundred eighty".