56754239 has 4 divisors (see below), whose sum is σ = 57961824. Its totient is φ = 55546656.

The previous prime is 56754221. The next prime is 56754259. The reversal of 56754239 is 93245765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56754239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56754196 and 56754205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56754259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603722 + ... + 603815.

It is an arithmetic number, because the mean of its divisors is an integer number (14490456).

Almost surely, 2^56754239 is an apocalyptic number.

56754239 is a deficient number, since it is larger than the sum of its proper divisors (1207585).

56754239 is a wasteful number, since it uses less digits than its factorization.

56754239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207584.

The product of its digits is 226800, while the sum is 41.

The square root of 56754239 is about 7533.5409337177. The cubic root of 56754239 is about 384.2962101621.

The spelling of 56754239 in words is "fifty-six million, seven hundred fifty-four thousand, two hundred thirty-nine".