56542216 has 16 divisors (see below), whose sum is σ = 108882540. Its totient is φ = 27506880.

The previous prime is 56542193. The next prime is 56542217. The reversal of 56542216 is 61224565.

It can be written as a sum of positive squares in 2 ways, for example, as 55562116 + 980100 = 7454^2 + 990^2 .

It is not an unprimeable number, because it can be changed into a prime (56542217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95215 + ... + 95806.

Almost surely, 2^56542216 is an apocalyptic number.

It is an amenable number.

56542216 is a deficient number, since it is larger than the sum of its proper divisors (52340324).

56542216 is a wasteful number, since it uses less digits than its factorization.

56542216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191064 (or 191060 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 56542216 is about 7519.4558313750. The cubic root of 56542216 is about 383.8170605747.

The spelling of 56542216 in words is "fifty-six million, five hundred forty-two thousand, two hundred sixteen".