2551287216 has 20 divisors (see below), whose sum is σ = 6590825432. Its totient is φ = 850429056.

The previous prime is 2551287181. The next prime is 2551287227. The reversal of 2551287216 is 6127821552.

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, 26575861 + ... + 26575956.

Almost surely, 2^2551287216 is an apocalyptic number.

It is an amenable number.

2551287216 is an abundant number, since it is smaller than the sum of its proper divisors (4039538216).

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

2551287216 is a wasteful number, since it uses less digits than its factorization.

2551287216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53151828 (or 53151822 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 2551287216 is about 50510.2684213814. The cubic root of 2551287216 is about 1366.4270505416.

The spelling of 2551287216 in words is "two billion, five hundred fifty-one million, two hundred eighty-seven thousand, two hundred sixteen".