56552920 has 32 divisors (see below), whose sum is σ = 129042720. Its totient is φ = 22301440.

The previous prime is 56552887. The next prime is 56552921. The reversal of 56552920 is 2925565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56552921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7117 + ... + 12796.

It is an arithmetic number, because the mean of its divisors is an integer number (4032585).

Almost surely, 2^56552920 is an apocalyptic number.

It is an amenable number.

56552920 is an abundant number, since it is smaller than the sum of its proper divisors (72489800).

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

56552920 is a wasteful number, since it uses less digits than its factorization.

56552920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19995 (or 19991 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 56552920 is about 7520.1675513249. The cubic root of 56552920 is about 383.8412791668.

The spelling of 56552920 in words is "fifty-six million, five hundred fifty-two thousand, nine hundred twenty".