15696280253 has 2 divisors, whose sum is σ = 15696280254. Its totient is φ = 15696280252.

The previous prime is 15696280219. The next prime is 15696280283. The reversal of 15696280253 is 35208269651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10757423524 + 4938856729 = 103718^2 + 70277^2 .

It is a cyclic number.

It is not a de Polignac number, because 15696280253 - 2⁸ = 15696279997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15696280198 and 15696280207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15696280283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7848140126 + 7848140127.

It is an arithmetic number, because the mean of its divisors is an integer number (7848140127).

Almost surely, 2^15696280253 is an apocalyptic number.

It is an amenable number.

15696280253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15696280253 is an equidigital number, since it uses as much as digits as its factorization.

15696280253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 15696280253 in words is "fifteen billion, six hundred ninety-six million, two hundred eighty thousand, two hundred fifty-three".