56750139 has 20 divisors (see below), whose sum is σ = 86048424. Its totient is φ = 37265184.

The previous prime is 56750137. The next prime is 56750149. The reversal of 56750139 is 93105765.

It is a happy number.

It is not a de Polignac number, because 56750139 - 2¹ = 56750137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56750137) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 199 + ... + 10655.

Almost surely, 2^56750139 is an apocalyptic number.

56750139 is a deficient number, since it is larger than the sum of its proper divisors (29298285).

56750139 is a wasteful number, since it uses less digits than its factorization.

56750139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536 (or 10527 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 56750139 is about 7533.2688124081. The cubic root of 56750139 is about 384.2869559200.

The spelling of 56750139 in words is "fifty-six million, seven hundred fifty thousand, one hundred thirty-nine".