2551515223 has 2 divisors, whose sum is σ = 2551515224. Its totient is φ = 2551515222.

The previous prime is 2551515203. The next prime is 2551515251. The reversal of 2551515223 is 3225151552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2551515223 - 2⁵ = 2551515191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551515203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275757611 + 1275757612.

It is an arithmetic number, because the mean of its divisors is an integer number (1275757612).

Almost surely, 2^2551515223 is an apocalyptic number.

2551515223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551515223 is an equidigital number, since it uses as much as digits as its factorization.

2551515223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15000, while the sum is 31.

The square root of 2551515223 is about 50512.5254070711. The cubic root of 2551515223 is about 1366.4677549162.

Adding to 2551515223 its reverse (3225151552), we get a palindrome (5776666775).

The spelling of 2551515223 in words is "two billion, five hundred fifty-one million, five hundred fifteen thousand, two hundred twenty-three".