56112559 has 4 divisors (see below), whose sum is σ = 57481200. Its totient is φ = 54743920.

The previous prime is 56112547. The next prime is 56112583. The reversal of 56112559 is 95521165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95521165 = 5 ⋅19104233.

It is a cyclic number.

It is not a de Polignac number, because 56112559 - 2⁷ = 56112431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56112509) 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, 684259 + ... + 684340.

It is an arithmetic number, because the mean of its divisors is an integer number (14370300).

Almost surely, 2^56112559 is an apocalyptic number.

56112559 is a deficient number, since it is larger than the sum of its proper divisors (1368641).

56112559 is a wasteful number, since it uses less digits than its factorization.

56112559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368640.

The product of its digits is 13500, while the sum is 34.

The square root of 56112559 is about 7490.8316627728. The cubic root of 56112559 is about 382.8423955073.

The spelling of 56112559 in words is "fifty-six million, one hundred twelve thousand, five hundred fifty-nine".