56603420020 has 48 divisors (see below), whose sum is σ = 139161593088. Its totient is φ = 18933546240.

The previous prime is 56603420009. The next prime is 56603420033. The reversal of 56603420020 is 2002430665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4924872 + ... + 4936351.

It is an arithmetic number, because the mean of its divisors is an integer number (2899199856).

Almost surely, 2^56603420020 is an apocalyptic number.

It is an amenable number.

56603420020 is an abundant number, since it is smaller than the sum of its proper divisors (82558173068).

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

56603420020 is a wasteful number, since it uses less digits than its factorization.

56603420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861280 (or 9861278 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 56603420020 its reverse (2002430665), we get a palindrome (58605850685).

The spelling of 56603420020 in words is "fifty-six billion, six hundred three million, four hundred twenty thousand, twenty".