56271893 has 4 divisors (see below), whose sum is σ = 57111840. Its totient is φ = 55431948.

The previous prime is 56271889. The next prime is 56271947. The reversal of 56271893 is 39817265.

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.

It is a cyclic number.

It is not a de Polignac number, because 56271893 - 2² = 56271889 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 56271893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56271493) 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, 419873 + ... + 420006.

It is an arithmetic number, because the mean of its divisors is an integer number (14277960).

Almost surely, 2^56271893 is an apocalyptic number.

It is an amenable number.

56271893 is a deficient number, since it is larger than the sum of its proper divisors (839947).

56271893 is an equidigital number, since it uses as much as digits as its factorization.

56271893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839946.

The product of its digits is 90720, while the sum is 41.

The square root of 56271893 is about 7501.4593913451. The cubic root of 56271893 is about 383.2044188229.

The spelling of 56271893 in words is "fifty-six million, two hundred seventy-one thousand, eight hundred ninety-three".