56738139 has 16 divisors (see below), whose sum is σ = 76873728. Its totient is φ = 37219392.

The previous prime is 56738107. The next prime is 56738173. The reversal of 56738139 is 93183765.

56738139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56738139 - 2⁵ = 56738107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56738139.

It is not an unprimeable number, because it can be changed into a prime (56738179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51654 + ... + 52740.

It is an arithmetic number, because the mean of its divisors is an integer number (4804608).

Almost surely, 2^56738139 is an apocalyptic number.

56738139 is a deficient number, since it is larger than the sum of its proper divisors (20135589).

56738139 is a wasteful number, since it uses less digits than its factorization.

56738139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 136080, while the sum is 42.

The square root of 56738139 is about 7532.4723033012. The cubic root of 56738139 is about 384.2598677717.

The spelling of 56738139 in words is "fifty-six million, seven hundred thirty-eight thousand, one hundred thirty-nine".