2551651264 has 28 divisors (see below), whose sum is σ = 5070183408. Its totient is φ = 1274124800.

The previous prime is 2551651259. The next prime is 2551651279. The reversal of 2551651264 is 4621561552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22509 + ... + 74899.

Almost surely, 2^2551651264 is an apocalyptic number.

It is an amenable number.

2551651264 is a deficient number, since it is larger than the sum of its proper divisors (2518532144).

2551651264 is an equidigital number, since it uses as much as digits as its factorization.

2551651264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53164 (or 53154 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 2551651264 is about 50513.8719957201. The cubic root of 2551651264 is about 1366.4920401376.

The spelling of 2551651264 in words is "two billion, five hundred fifty-one million, six hundred fifty-one thousand, two hundred sixty-four".