56216100 has 36 divisors (see below), whose sum is σ = 162652784. Its totient is φ = 14990880.

The previous prime is 56216099. The next prime is 56216129. The reversal of 56216100 is 161265.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93394 + ... + 93993.

Almost surely, 2^56216100 is an apocalyptic number.

56216100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56216100 is an abundant number, since it is smaller than the sum of its proper divisors (106436684).

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

56216100 is a wasteful number, since it uses less digits than its factorization.

56216100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187404 (or 187397 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 56216100 is about 7497.7396593907. The cubic root of 56216100 is about 383.0777292037.

Adding to 56216100 its reverse (161265), we get a palindrome (56377365).

The spelling of 56216100 in words is "fifty-six million, two hundred sixteen thousand, one hundred".