56647167 has 4 divisors (see below), whose sum is σ = 75529560. Its totient is φ = 37764776.

The previous prime is 56647159. The next prime is 56647177. The reversal of 56647167 is 76174665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56647167 - 2³ = 56647159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56647177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9441192 + ... + 9441197.

It is an arithmetic number, because the mean of its divisors is an integer number (18882390).

Almost surely, 2^56647167 is an apocalyptic number.

56647167 is a deficient number, since it is larger than the sum of its proper divisors (18882393).

56647167 is a wasteful number, since it uses less digits than its factorization.

56647167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18882392.

The product of its digits is 211680, while the sum is 42.

The square root of 56647167 is about 7526.4312260194. The cubic root of 56647167 is about 384.0543881839.

The spelling of 56647167 in words is "fifty-six million, six hundred forty-seven thousand, one hundred sixty-seven".