56550020 has 24 divisors (see below), whose sum is σ = 118898304. Its totient is φ = 22592736.

The previous prime is 56549981. The next prime is 56550037. The reversal of 56550020 is 2005565.

56550020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27467 + ... + 29453.

It is an arithmetic number, because the mean of its divisors is an integer number (4954096).

Almost surely, 2^56550020 is an apocalyptic number.

It is an amenable number.

56550020 is an abundant number, since it is smaller than the sum of its proper divisors (62348284).

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

56550020 is a wasteful number, since it uses less digits than its factorization.

56550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419 (or 3417 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 56550020 is about 7519.9747340001. The cubic root of 56550020 is about 383.8347180041.

Adding to 56550020 its reverse (2005565), we get a palindrome (58555585).

The spelling of 56550020 in words is "fifty-six million, five hundred fifty thousand, twenty".