2256542216 has 16 divisors (see below), whose sum is σ = 4237861200. Its totient is φ = 1126445904.

The previous prime is 2256542191. The next prime is 2256542221. The reversal of 2256542216 is 6122456522.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222890 + ... + 232793.

It is an arithmetic number, because the mean of its divisors is an integer number (264866325).

Almost surely, 2^2256542216 is an apocalyptic number.

It is an amenable number.

2256542216 is a deficient number, since it is larger than the sum of its proper divisors (1981318984).

2256542216 is a wasteful number, since it uses less digits than its factorization.

2256542216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456308 (or 456304 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 2256542216 is about 47503.0758583063. The cubic root of 2256542216 is about 1311.6395019490.

Adding to 2256542216 its reverse (6122456522), we get a palindrome (8378998738).

The spelling of 2256542216 in words is "two billion, two hundred fifty-six million, five hundred forty-two thousand, two hundred sixteen".