56151216 has 60 divisors (see below), whose sum is σ = 171436200. Its totient is φ = 17015040.

The previous prime is 56151209. The next prime is 56151217. The reversal of 56151216 is 61215165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56151216.

It is not an unprimeable number, because it can be changed into a prime (56151217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16141 + ... + 19308.

It is an arithmetic number, because the mean of its divisors is an integer number (2857270).

Almost surely, 2^56151216 is an apocalyptic number.

It is an amenable number.

56151216 is an abundant number, since it is smaller than the sum of its proper divisors (115284984).

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

56151216 is a wasteful number, since it uses less digits than its factorization.

56151216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35474 (or 35465 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 56151216 is about 7493.4115061166. The cubic root of 56151216 is about 382.9302911079.

The spelling of 56151216 in words is "fifty-six million, one hundred fifty-one thousand, two hundred sixteen".