56100550 has 24 divisors (see below), whose sum is σ = 113834232. Its totient is φ = 20400000.

The previous prime is 56100511. The next prime is 56100557. The reversal of 56100550 is 5500165.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 50451 + ... + 51550.

It is an arithmetic number, because the mean of its divisors is an integer number (4743093).

Almost surely, 2^56100550 is an apocalyptic number.

56100550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56100550 is an abundant number, since it is smaller than the sum of its proper divisors (57733682).

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

56100550 is a wasteful number, since it uses less digits than its factorization.

56100550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102024 (or 102019 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 56100550 is about 7490.0300399932. The cubic root of 56100550 is about 382.8150820595.

Subtracting from 56100550 its sum of digits (22), we obtain a triangular number (56100528 = T₁₀₅₉₂).

The spelling of 56100550 in words is "fifty-six million, one hundred thousand, five hundred fifty".