56805620 has 12 divisors (see below), whose sum is σ = 119291844. Its totient is φ = 22722240.

The previous prime is 56805527. The next prime is 56805629. The reversal of 56805620 is 2650865.

It is a happy number.

56805620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36699364 + 20106256 = 6058^2 + 4484^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56805629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1420121 + ... + 1420160.

It is an arithmetic number, because the mean of its divisors is an integer number (9940987).

Almost surely, 2^56805620 is an apocalyptic number.

It is an amenable number.

56805620 is an abundant number, since it is smaller than the sum of its proper divisors (62486224).

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

56805620 is a wasteful number, since it uses less digits than its factorization.

56805620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840290 (or 2840288 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 56805620 is about 7536.9503116314. The cubic root of 56805620 is about 384.4121461005.

The spelling of 56805620 in words is "fifty-six million, eight hundred five thousand, six hundred twenty".