2551531515229 has 2 divisors, whose sum is σ = 2551531515230. Its totient is φ = 2551531515228.

The previous prime is 2551531515187. The next prime is 2551531515289. The reversal of 2551531515229 is 9225151351552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2197589810329 + 353941704900 = 1482427^2 + 594930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551531515229 - 2⁷ = 2551531515101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2551531515289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275765757614 + 1275765757615.

It is an arithmetic number, because the mean of its divisors is an integer number (1275765757615).

Almost surely, 2^{2551531515229} is an apocalyptic number.

It is an amenable number.

2551531515229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551531515229 is an equidigital number, since it uses as much as digits as its factorization.

2551531515229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 675000, while the sum is 46.

The spelling of 2551531515229 in words is "two trillion, five hundred fifty-one billion, five hundred thirty-one million, five hundred fifteen thousand, two hundred twenty-nine".