56281273 has 8 divisors (see below), whose sum is σ = 57283200. Its totient is φ = 55284240.

The previous prime is 56281241. The next prime is 56281279. The reversal of 56281273 is 37218265.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56281273 - 2⁵ = 56281241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56281279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27903 + ... + 29851.

It is an arithmetic number, because the mean of its divisors is an integer number (7160400).

Almost surely, 2^56281273 is an apocalyptic number.

It is an amenable number.

56281273 is a deficient number, since it is larger than the sum of its proper divisors (1001927).

56281273 is a wasteful number, since it uses less digits than its factorization.

56281273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447.

The product of its digits is 20160, while the sum is 34.

The square root of 56281273 is about 7502.0845769693. The cubic root of 56281273 is about 383.2257098414.

The spelling of 56281273 in words is "fifty-six million, two hundred eighty-one thousand, two hundred seventy-three".