15255205513 has 2 divisors, whose sum is σ = 15255205514. Its totient is φ = 15255205512.

The previous prime is 15255205463. The next prime is 15255205517. The reversal of 15255205513 is 31550255251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11176084089 + 4079121424 = 105717^2 + 63868^2 .

It is a cyclic number.

It is not a de Polignac number, because 15255205513 - 2²⁹ = 14718334601 is a prime.

It is not a weakly prime, because it can be changed into another prime (15255205517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7627602756 + 7627602757.

It is an arithmetic number, because the mean of its divisors is an integer number (7627602757).

Almost surely, 2^15255205513 is an apocalyptic number.

It is an amenable number.

15255205513 is a deficient number, since it is larger than the sum of its proper divisors (1).

15255205513 is an equidigital number, since it uses as much as digits as its factorization.

15255205513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 15255205513 in words is "fifteen billion, two hundred fifty-five million, two hundred five thousand, five hundred thirteen".