56667423 has 16 divisors (see below), whose sum is σ = 79358976. Its totient is φ = 35898720.

The previous prime is 56667419. The next prime is 56667433. The reversal of 56667423 is 32476665.

It is not a de Polignac number, because 56667423 - 2² = 56667419 is a prime.

It is a super-2 number, since 2×56667423² = 6422393658921858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8218 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (4959936).

Almost surely, 2^56667423 is an apocalyptic number.

56667423 is a deficient number, since it is larger than the sum of its proper divisors (22691553).

56667423 is a wasteful number, since it uses less digits than its factorization.

56667423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5414.

The product of its digits is 181440, while the sum is 39.

The square root of 56667423 is about 7527.7767634276. The cubic root of 56667423 is about 384.1001596910.

The spelling of 56667423 in words is "fifty-six million, six hundred sixty-seven thousand, four hundred twenty-three".