56667131 has 8 divisors (see below), whose sum is σ = 58734720. Its totient is φ = 54607168.

The previous prime is 56667097. The next prime is 56667133. The reversal of 56667131 is 13176665.

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 56667131 - 2¹⁸ = 56404987 is a prime.

It is a super-2 number, since 2×56667131² = 6422327471542322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56667091 and 56667100.

It is not an unprimeable number, because it can be changed into a prime (56667133) 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, 16310 + ... + 19476.

It is an arithmetic number, because the mean of its divisors is an integer number (7341840).

Almost surely, 2^56667131 is an apocalyptic number.

56667131 is a deficient number, since it is larger than the sum of its proper divisors (2067589).

56667131 is a wasteful number, since it uses less digits than its factorization.

56667131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813.

The product of its digits is 22680, while the sum is 35.

The square root of 56667131 is about 7527.7573685660. The cubic root of 56667131 is about 384.0994999501.

The spelling of 56667131 in words is "fifty-six million, six hundred sixty-seven thousand, one hundred thirty-one".