56139167 has 8 divisors (see below), whose sum is σ = 67536000. Its totient is φ = 45586584.

The previous prime is 56139163. The next prime is 56139169. The reversal of 56139167 is 76193165.

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 56139167 - 2² = 56139163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56139167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56139163) 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, 210917 + ... + 211182.

It is an arithmetic number, because the mean of its divisors is an integer number (8442000).

Almost surely, 2^56139167 is an apocalyptic number.

56139167 is a deficient number, since it is larger than the sum of its proper divisors (11396833).

56139167 is a wasteful number, since it uses less digits than its factorization.

56139167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422125.

The product of its digits is 34020, while the sum is 38.

The square root of 56139167 is about 7492.6074900531. The cubic root of 56139167 is about 382.9028992574.

The spelling of 56139167 in words is "fifty-six million, one hundred thirty-nine thousand, one hundred sixty-seven".