56100089 has 4 divisors (see below), whose sum is σ = 56164224. Its totient is φ = 56035956.

The previous prime is 56100073. The next prime is 56100101. The reversal of 56100089 is 98000165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56100089 - 2⁴ = 56100073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56100389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30737 + ... + 32510.

It is an arithmetic number, because the mean of its divisors is an integer number (14041056).

Almost surely, 2^56100089 is an apocalyptic number.

It is an amenable number.

56100089 is a deficient number, since it is larger than the sum of its proper divisors (64135).

56100089 is an equidigital number, since it uses as much as digits as its factorization.

56100089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64134.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 56100089 is about 7489.9992656875. Note that the first 3 decimals coincide. The cubic root of 56100089 is about 382.8140334766.

The spelling of 56100089 in words is "fifty-six million, one hundred thousand, eighty-nine".