56226811554 has 64 divisors (see below), whose sum is σ = 127551283200. Its totient is φ = 18354275856.

The previous prime is 56226811541. The next prime is 56226811573. The reversal of 56226811554 is 45511862265.

56226811554 is a `hidden beast` number, since 5 + 6 + 22 + 68 + 11 + 554 = 666.

It is a super-2 number, since 2×56226811554² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 804367 + ... + 871469.

It is an arithmetic number, because the mean of its divisors is an integer number (1992988800).

Almost surely, 2^56226811554 is an apocalyptic number.

56226811554 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56226811554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63775641600).

56226811554 is an abundant number, since it is smaller than the sum of its proper divisors (71324471646).

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

56226811554 is a wasteful number, since it uses less digits than its factorization.

56226811554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67436 (or 67430 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The spelling of 56226811554 in words is "fifty-six billion, two hundred twenty-six million, eight hundred eleven thousand, five hundred fifty-four".