56705273 has 4 divisors (see below), whose sum is σ = 56784000. Its totient is φ = 56626548.

The previous prime is 56705269. The next prime is 56705279. The reversal of 56705273 is 37250765.

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 56705273 - 2² = 56705269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (56705279) 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, 38273 + ... + 39726.

It is an arithmetic number, because the mean of its divisors is an integer number (14196000).

Almost surely, 2^56705273 is an apocalyptic number.

It is an amenable number.

56705273 is a deficient number, since it is larger than the sum of its proper divisors (78727).

56705273 is an equidigital number, since it uses as much as digits as its factorization.

56705273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78726.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 56705273 is about 7530.2903662475. The cubic root of 56705273 is about 384.1856582875.

The spelling of 56705273 in words is "fifty-six million, seven hundred five thousand, two hundred seventy-three".