56167851 has 4 divisors (see below), whose sum is σ = 74890472. Its totient is φ = 37445232.

The previous prime is 56167841. The next prime is 56167861. The reversal of 56167851 is 15876165.

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

It is an interprime number because it is at equal distance from previous prime (56167841) and next prime (56167861).

It is not a de Polignac number, because 56167851 - 2⁷ = 56167723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56167801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9361306 + ... + 9361311.

It is an arithmetic number, because the mean of its divisors is an integer number (18722618).

Almost surely, 2^56167851 is an apocalyptic number.

56167851 is a deficient number, since it is larger than the sum of its proper divisors (18722621).

56167851 is a wasteful number, since it uses less digits than its factorization.

56167851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18722620.

The product of its digits is 50400, while the sum is 39.

The square root of 56167851 is about 7494.5213989954. The cubic root of 56167851 is about 382.9681022003.

The spelling of 56167851 in words is "fifty-six million, one hundred sixty-seven thousand, eight hundred fifty-one".