56427778 has 8 divisors (see below), whose sum is σ = 92336400. Its totient is φ = 25648980.

The previous prime is 56427769. The next prime is 56427779. The reversal of 56427778 is 87772465.

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

It is not an unprimeable number, because it can be changed into a prime (56427779) 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, 1282428 + ... + 1282471.

It is an arithmetic number, because the mean of its divisors is an integer number (11542050).

Almost surely, 2^56427778 is an apocalyptic number.

56427778 is a deficient number, since it is larger than the sum of its proper divisors (35908622).

56427778 is a wasteful number, since it uses less digits than its factorization.

56427778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564912.

The product of its digits is 658560, while the sum is 46.

The square root of 56427778 is about 7511.8425169861. The cubic root of 56427778 is about 383.5579449032.

The spelling of 56427778 in words is "fifty-six million, four hundred twenty-seven thousand, seven hundred seventy-eight".