56898511 has 4 divisors (see below), whose sum is σ = 56917224. Its totient is φ = 56879800.

The previous prime is 56898487. The next prime is 56898557. The reversal of 56898511 is 11589865.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56898511 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 (56898011) 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, 3625 + ... + 11266.

It is an arithmetic number, because the mean of its divisors is an integer number (14229306).

Almost surely, 2^56898511 is an apocalyptic number.

56898511 is a deficient number, since it is larger than the sum of its proper divisors (18713).

56898511 is a wasteful number, since it uses less digits than its factorization.

56898511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18712.

The product of its digits is 86400, while the sum is 43.

The square root of 56898511 is about 7543.1101675635. The cubic root of 56898511 is about 384.6215677642.

The spelling of 56898511 in words is "fifty-six million, eight hundred ninety-eight thousand, five hundred eleven".