56522721600 has 504 divisors, whose sum is σ = 209218101248. Its totient is φ = 14457139200.

The previous prime is 56522721599. The next prime is 56522721649. The reversal of 56522721600 is 612722565.

56522721600 is a `hidden beast` number, since 5 + 6 + 5 + 2 + 27 + 21 + 600 = 666.

It is a super-2 number, since 2×56522721600² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56692302 + ... + 56693298.

Almost surely, 2^56522721600 is an apocalyptic number.

56522721600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56522721600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104609050624).

56522721600 is an abundant number, since it is smaller than the sum of its proper divisors (152695379648).

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

56522721600 is a wasteful number, since it uses less digits than its factorization.

56522721600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 56522721600 in words is "fifty-six billion, five hundred twenty-two million, seven hundred twenty-one thousand, six hundred".