56667873 has 4 divisors (see below), whose sum is σ = 75557168. Its totient is φ = 37778580.

The previous prime is 56667859. The next prime is 56667881. The reversal of 56667873 is 37876665.

56667873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 56667873 - 2¹⁰ = 56666849 is a prime.

It is a super-2 number, since 2×56667873² = 6422495660688258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56667803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9444643 + ... + 9444648.

It is an arithmetic number, because the mean of its divisors is an integer number (18889292).

Almost surely, 2^56667873 is an apocalyptic number.

It is an amenable number.

56667873 is a deficient number, since it is larger than the sum of its proper divisors (18889295).

56667873 is a wasteful number, since it uses less digits than its factorization.

56667873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18889294.

The product of its digits is 1270080, while the sum is 48.

The square root of 56667873 is about 7527.8066526711. The cubic root of 56667873 is about 384.1011764104.

The spelling of 56667873 in words is "fifty-six million, six hundred sixty-seven thousand, eight hundred seventy-three".