56587273 has 4 divisors (see below), whose sum is σ = 57136768. Its totient is φ = 56037780.

The previous prime is 56587247. The next prime is 56587277. The reversal of 56587273 is 37278565.

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 a de Polignac number, because none of the positive numbers 2^k-56587273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56587277) 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, 274593 + ... + 274798.

It is an arithmetic number, because the mean of its divisors is an integer number (14284192).

Almost surely, 2^56587273 is an apocalyptic number.

It is an amenable number.

56587273 is a deficient number, since it is larger than the sum of its proper divisors (549495).

56587273 is a wasteful number, since it uses less digits than its factorization.

56587273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549494.

The product of its digits is 352800, while the sum is 43.

The square root of 56587273 is about 7522.4512627202. The cubic root of 56587273 is about 383.9189847354.

The spelling of 56587273 in words is "fifty-six million, five hundred eighty-seven thousand, two hundred seventy-three".