15996275 has 6 divisors (see below), whose sum is σ = 19835412. Its totient is φ = 12797000.

The previous prime is 15996251. The next prime is 15996307. The reversal of 15996275 is 57269951.

It is a happy number.

It is not a de Polignac number, because 15996275 - 2¹⁰ = 15995251 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319901 + ... + 319950.

It is an arithmetic number, because the mean of its divisors is an integer number (3305902).

Almost surely, 2^15996275 is an apocalyptic number.

15996275 is a deficient number, since it is larger than the sum of its proper divisors (3839137).

15996275 is an equidigital number, since it uses as much as digits as its factorization.

15996275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639861 (or 639856 counting only the distinct ones).

The product of its digits is 170100, while the sum is 44.

The square root of 15996275 is about 3999.5343478960. The cubic root of 15996275 is about 251.9646534366.

The spelling of 15996275 in words is "fifteen million, nine hundred ninety-six thousand, two hundred seventy-five".