56754139 has 4 divisors (see below), whose sum is σ = 61119856. Its totient is φ = 52388424.

The previous prime is 56754107. The next prime is 56754151. The reversal of 56754139 is 93145765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93145765 = 5 ⋅18629153.

It is a cyclic number.

It is not a de Polignac number, because 56754139 - 2⁵ = 56754107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56752139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2182839 + ... + 2182864.

It is an arithmetic number, because the mean of its divisors is an integer number (15279964).

Almost surely, 2^56754139 is an apocalyptic number.

56754139 is a deficient number, since it is larger than the sum of its proper divisors (4365717).

56754139 is a wasteful number, since it uses less digits than its factorization.

56754139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4365716.

The product of its digits is 113400, while the sum is 40.

The square root of 56754139 is about 7533.5342967295. The cubic root of 56754139 is about 384.2959844542.

The spelling of 56754139 in words is "fifty-six million, seven hundred fifty-four thousand, one hundred thirty-nine".