56874187 has 4 divisors (see below), whose sum is σ = 56892096. Its totient is φ = 56856280.

The previous prime is 56874161. The next prime is 56874253. The reversal of 56874187 is 78147865.

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 56874187 - 2¹¹ = 56872139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56874157) 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, 2764 + ... + 11017.

It is an arithmetic number, because the mean of its divisors is an integer number (14223024).

Almost surely, 2^56874187 is an apocalyptic number.

56874187 is a deficient number, since it is larger than the sum of its proper divisors (17909).

56874187 is a wasteful number, since it uses less digits than its factorization.

56874187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17908.

The product of its digits is 376320, while the sum is 46.

The square root of 56874187 is about 7541.4976629314. The cubic root of 56874187 is about 384.5667516344.

The spelling of 56874187 in words is "fifty-six million, eight hundred seventy-four thousand, one hundred eighty-seven".