56839542 has 8 divisors (see below), whose sum is σ = 113679096. Its totient is φ = 18946512.

The previous prime is 56839529. The next prime is 56839543. The reversal of 56839542 is 24593865.

It is a sphenic number, since it is the product of 3 distinct primes.

56839542 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 56839494 and 56839503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56839543) 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, 4736623 + ... + 4736634.

It is an arithmetic number, because the mean of its divisors is an integer number (14209887).

Almost surely, 2^56839542 is an apocalyptic number.

56839542 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56839542 is a wasteful number, since it uses less digits than its factorization.

56839542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9473262.

The product of its digits is 259200, while the sum is 42.

The square root of 56839542 is about 7539.2003554754. The cubic root of 56839542 is about 384.4886492941.

It can be divided in two parts, 5683 and 9542, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 56839542 in words is "fifty-six million, eight hundred thirty-nine thousand, five hundred forty-two".