56233811 has 4 divisors (see below), whose sum is σ = 56344800. Its totient is φ = 56122824.

The previous prime is 56233799. The next prime is 56233829. The reversal of 56233811 is 11833265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11833265 = 5 ⋅2366653.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56233811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56233211) 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, 54731 + ... + 55748.

It is an arithmetic number, because the mean of its divisors is an integer number (14086200).

Almost surely, 2^56233811 is an apocalyptic number.

56233811 is a deficient number, since it is larger than the sum of its proper divisors (110989).

56233811 is a wasteful number, since it uses less digits than its factorization.

56233811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110988.

The product of its digits is 4320, while the sum is 29.

The square root of 56233811 is about 7498.9206556677. The cubic root of 56233811 is about 383.1179547931.

The spelling of 56233811 in words is "fifty-six million, two hundred thirty-three thousand, eight hundred eleven".