56520700 has 18 divisors (see below), whose sum is σ = 122650136. Its totient is φ = 22608240.

The previous prime is 56520697. The next prime is 56520701. The reversal of 56520700 is 702565.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56520701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282504 + ... + 282703.

Almost surely, 2^56520700 is an apocalyptic number.

56520700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56520700 is an abundant number, since it is smaller than the sum of its proper divisors (66129436).

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

56520700 is a wasteful number, since it uses less digits than its factorization.

56520700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565221 (or 565214 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 56520700 is about 7518.0250066091. The cubic root of 56520700 is about 383.7683697842.

The spelling of 56520700 in words is "fifty-six million, five hundred twenty thousand, seven hundred".