56216478 has 16 divisors (see below), whose sum is σ = 118350720. Its totient is φ = 17752536.

The previous prime is 56216477. The next prime is 56216491. The reversal of 56216478 is 87461265.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56216477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246450 + ... + 246677.

It is an arithmetic number, because the mean of its divisors is an integer number (7396920).

Almost surely, 2^56216478 is an apocalyptic number.

56216478 is an abundant number, since it is smaller than the sum of its proper divisors (62134242).

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

56216478 is a wasteful number, since it uses less digits than its factorization.

56216478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493151.

The product of its digits is 80640, while the sum is 39.

The square root of 56216478 is about 7497.7648669453. The cubic root of 56216478 is about 383.0785878133.

The spelling of 56216478 in words is "fifty-six million, two hundred sixteen thousand, four hundred seventy-eight".