15915253 has 2 divisors, whose sum is σ = 15915254. Its totient is φ = 15915252.

The previous prime is 15915227. The next prime is 15915269. The reversal of 15915253 is 35251951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14002564 + 1912689 = 3742^2 + 1383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15915253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15915223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7957626 + 7957627.

It is an arithmetic number, because the mean of its divisors is an integer number (7957627).

Almost surely, 2^15915253 is an apocalyptic number.

It is an amenable number.

15915253 is a deficient number, since it is larger than the sum of its proper divisors (1).

15915253 is an equidigital number, since it uses as much as digits as its factorization.

15915253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6750, while the sum is 31.

The square root of 15915253 is about 3989.3925602778. The cubic root of 15915253 is about 251.5385282997.

The spelling of 15915253 in words is "fifteen million, nine hundred fifteen thousand, two hundred fifty-three".