56605020 has 48 divisors (see below), whose sum is σ = 159213600. Its totient is φ = 15026176.

The previous prime is 56604983. The next prime is 56605037. The reversal of 56605020 is 2050665.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11956 + ... + 16004.

It is an arithmetic number, because the mean of its divisors is an integer number (3316950).

Almost surely, 2^56605020 is an apocalyptic number.

It is an amenable number.

56605020 is an abundant number, since it is smaller than the sum of its proper divisors (102608580).

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

56605020 is a wasteful number, since it uses less digits than its factorization.

56605020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294 (or 4292 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 56605020 is about 7523.6307724396. The cubic root of 56605020 is about 383.9591156559.

Adding to 56605020 its reverse (2050665), we get a palindrome (58655685).

The spelling of 56605020 in words is "fifty-six million, six hundred five thousand, twenty".