56554107220 has 24 divisors (see below), whose sum is σ = 127899289224. Its totient is φ = 20881516416.

The previous prime is 56554107199. The next prime is 56554107227. The reversal of 56554107220 is 2270145565.

It can be written as a sum of positive squares in 4 ways, for example, as 258952464 + 56295154756 = 16092^2 + 237266^2 .

It is a super-2 number, since 2×56554107220² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56554107220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56554107227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 108757639 + ... + 108758158.

It is an arithmetic number, because the mean of its divisors is an integer number (5329137051).

Almost surely, 2^56554107220 is an apocalyptic number.

It is an amenable number.

56554107220 is an abundant number, since it is smaller than the sum of its proper divisors (71345182004).

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

56554107220 is a wasteful number, since it uses less digits than its factorization.

56554107220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217515819 (or 217515817 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The spelling of 56554107220 in words is "fifty-six billion, five hundred fifty-four million, one hundred seven thousand, two hundred twenty".