56100556 has 24 divisors (see below), whose sum is σ = 99693440. Its totient is φ = 27620352.

The previous prime is 56100511. The next prime is 56100557. The reversal of 56100556 is 65500165.

It is not an unprimeable number, because it can be changed into a prime (56100557) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 96940 + ... + 97516.

Almost surely, 2^56100556 is an apocalyptic number.

It is an amenable number.

56100556 is a deficient number, since it is larger than the sum of its proper divisors (43592884).

56100556 is a wasteful number, since it uses less digits than its factorization.

56100556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 911 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 56100556 is about 7490.0304405256. The cubic root of 56100556 is about 382.8150957070.

Subtracting from 56100556 its sum of digits (28), we obtain a triangular number (56100528 = T₁₀₅₉₂).

The spelling of 56100556 in words is "fifty-six million, one hundred thousand, five hundred fifty-six".