56139446 has 8 divisors (see below), whose sum is σ = 91864584. Its totient is φ = 25517920.

The previous prime is 56139443. The next prime is 56139463. The reversal of 56139446 is 64493165.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56139443) 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, 1275875 + ... + 1275918.

It is an arithmetic number, because the mean of its divisors is an integer number (11483073).

Almost surely, 2^56139446 is an apocalyptic number.

56139446 is a deficient number, since it is larger than the sum of its proper divisors (35725138).

56139446 is a wasteful number, since it uses less digits than its factorization.

56139446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551806.

The product of its digits is 77760, while the sum is 38.

The square root of 56139446 is about 7492.6261083815. The cubic root of 56139446 is about 382.9035335723.

The spelling of 56139446 in words is "fifty-six million, one hundred thirty-nine thousand, four hundred forty-six".