15315552253 has 2 divisors, whose sum is σ = 15315552254. Its totient is φ = 15315552252.

The previous prime is 15315552233. The next prime is 15315552269. The reversal of 15315552253 is 35225551351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13930372729 + 1385179524 = 118027^2 + 37218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15315552253 is a prime.

It is a super-2 number, since 2×15315552253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15315552233) 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, 7657776126 + 7657776127.

It is an arithmetic number, because the mean of its divisors is an integer number (7657776127).

Almost surely, 2^15315552253 is an apocalyptic number.

It is an amenable number.

15315552253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15315552253 is an equidigital number, since it uses as much as digits as its factorization.

15315552253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112500, while the sum is 37.

The spelling of 15315552253 in words is "fifteen billion, three hundred fifteen million, five hundred fifty-two thousand, two hundred fifty-three".