56291933 has 4 divisors (see below), whose sum is σ = 56473248. Its totient is φ = 56110620.

The previous prime is 56291903. The next prime is 56291941. The reversal of 56291933 is 33919265.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33919265 = 5 ⋅6783853.

It is a de Polignac number, because none of the positive numbers 2^k-56291933 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 (56291903) 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, 90191 + ... + 90812.

It is an arithmetic number, because the mean of its divisors is an integer number (14118312).

Almost surely, 2^56291933 is an apocalyptic number.

It is an amenable number.

56291933 is a deficient number, since it is larger than the sum of its proper divisors (181315).

56291933 is a wasteful number, since it uses less digits than its factorization.

56291933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181314.

The product of its digits is 43740, while the sum is 38.

The square root of 56291933 is about 7502.7950125270. The cubic root of 56291933 is about 383.2499033724.

The spelling of 56291933 in words is "fifty-six million, two hundred ninety-one thousand, nine hundred thirty-three".