56783953 has 4 divisors (see below), whose sum is σ = 56799040. Its totient is φ = 56768868.

The previous prime is 56783929. The next prime is 56783959. The reversal of 56783953 is 35938765.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56783953 - 2⁵ = 56783921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56783959) 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, 3268 + ... + 11146.

It is an arithmetic number, because the mean of its divisors is an integer number (14199760).

Almost surely, 2^56783953 is an apocalyptic number.

It is an amenable number.

56783953 is a deficient number, since it is larger than the sum of its proper divisors (15087).

56783953 is an equidigital number, since it uses as much as digits as its factorization.

56783953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15086.

The product of its digits is 680400, while the sum is 46.

The square root of 56783953 is about 7535.5127894524. The cubic root of 56783953 is about 384.3632652729.

The spelling of 56783953 in words is "fifty-six million, seven hundred eighty-three thousand, nine hundred fifty-three".