56184139 has 4 divisors (see below), whose sum is σ = 61291800. Its totient is φ = 51076480.

The previous prime is 56184077. The next prime is 56184143. The reversal of 56184139 is 93148165.

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 56184139 - 2¹³ = 56175947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56184098 and 56184107.

It is not an unprimeable number, because it can be changed into a prime (56184199) 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, 2553814 + ... + 2553835.

It is an arithmetic number, because the mean of its divisors is an integer number (15322950).

Almost surely, 2^56184139 is an apocalyptic number.

56184139 is a deficient number, since it is larger than the sum of its proper divisors (5107661).

56184139 is a wasteful number, since it uses less digits than its factorization.

56184139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107660.

The product of its digits is 25920, while the sum is 37.

The square root of 56184139 is about 7495.6079806778. The cubic root of 56184139 is about 383.0051173342.

The spelling of 56184139 in words is "fifty-six million, one hundred eighty-four thousand, one hundred thirty-nine".