56421694 has 8 divisors (see below), whose sum is σ = 96722928. Its totient is φ = 24180720.

The previous prime is 56421689. The next prime is 56421787. The reversal of 56421694 is 49612465.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015047 + ... + 2015074.

It is an arithmetic number, because the mean of its divisors is an integer number (12090366).

Almost surely, 2^56421694 is an apocalyptic number.

56421694 is a deficient number, since it is larger than the sum of its proper divisors (40301234).

56421694 is a wasteful number, since it uses less digits than its factorization.

56421694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4030130.

The product of its digits is 51840, while the sum is 37.

The square root of 56421694 is about 7511.4375455035. The cubic root of 56421694 is about 383.5441594327.

The spelling of 56421694 in words is "fifty-six million, four hundred twenty-one thousand, six hundred ninety-four".