56545642 has 8 divisors (see below), whose sum is σ = 86887332. Its totient is φ = 27583200.

The previous prime is 56545637. The next prime is 56545669. The reversal of 56545642 is 24654565.

It can be written as a sum of positive squares in 2 ways, for example, as 38576521 + 17969121 = 6211^2 + 4239^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344709 + ... + 344872.

Almost surely, 2^56545642 is an apocalyptic number.

56545642 is a deficient number, since it is larger than the sum of its proper divisors (30341690).

56545642 is a wasteful number, since it uses less digits than its factorization.

56545642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689624.

The product of its digits is 144000, while the sum is 37.

The square root of 56545642 is about 7519.6836369624. The cubic root of 56545642 is about 383.8248124858.

The spelling of 56545642 in words is "fifty-six million, five hundred forty-five thousand, six hundred forty-two".