2551312051 has 4 divisors (see below), whose sum is σ = 2559360672. Its totient is φ = 2543263432.

The previous prime is 2551312013. The next prime is 2551312063. The reversal of 2551312051 is 1502131552.

2551312051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2551312051 - 2²⁹ = 2014441139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551312151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4023835 + ... + 4024468.

It is an arithmetic number, because the mean of its divisors is an integer number (639840168).

Almost surely, 2^2551312051 is an apocalyptic number.

2551312051 is a deficient number, since it is larger than the sum of its proper divisors (8048621).

2551312051 is an equidigital number, since it uses as much as digits as its factorization.

2551312051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8048620.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2551312051 is about 50510.5142618841. The cubic root of 2551312051 is about 1366.4314842650.

The spelling of 2551312051 in words is "two billion, five hundred fifty-one million, three hundred twelve thousand, fifty-one".