56019520 has 28 divisors (see below), whose sum is σ = 133397244. Its totient is φ = 22407680.

The previous prime is 56019499. The next prime is 56019521. The reversal of 56019520 is 2591065.

It can be written as a sum of positive squares in 2 ways, for example, as 7354944 + 48664576 = 2712^2 + 6976^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56019521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87211 + ... + 87850.

Almost surely, 2^56019520 is an apocalyptic number.

It is an amenable number.

56019520 is an abundant number, since it is smaller than the sum of its proper divisors (77377724).

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

56019520 is a wasteful number, since it uses less digits than its factorization.

56019520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175078 (or 175068 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 56019520 is about 7484.6188947735. The cubic root of 56019520 is about 382.6306842675.

The spelling of 56019520 in words is "fifty-six million, nineteen thousand, five hundred twenty".