56191883 has 4 divisors (see below), whose sum is σ = 61300248. Its totient is φ = 51083520.

The previous prime is 56191847. The next prime is 56191897. The reversal of 56191883 is 38819165.

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

It is a cyclic number.

It is not a de Polignac number, because 56191883 - 2¹⁸ = 55929739 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56191883.

It is not an unprimeable number, because it can be changed into a prime (56191813) 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, 2554166 + ... + 2554187.

It is an arithmetic number, because the mean of its divisors is an integer number (15325062).

Almost surely, 2^56191883 is an apocalyptic number.

56191883 is a deficient number, since it is larger than the sum of its proper divisors (5108365).

56191883 is a wasteful number, since it uses less digits than its factorization.

56191883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5108364.

The product of its digits is 51840, while the sum is 41.

The square root of 56191883 is about 7496.1245320499. The cubic root of 56191883 is about 383.0227133760.

The spelling of 56191883 in words is "fifty-six million, one hundred ninety-one thousand, eight hundred eighty-three".