15873225 has 12 divisors (see below), whose sum is σ = 26243856. Its totient is φ = 8465680.

The previous prime is 15873217. The next prime is 15873241. The reversal of 15873225 is 52237851.

15873225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15873225 - 2³ = 15873217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105747 + ... + 105896.

It is an arithmetic number, because the mean of its divisors is an integer number (2186988).

Almost surely, 2^15873225 is an apocalyptic number.

15873225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15873225 is a deficient number, since it is larger than the sum of its proper divisors (10370631).

15873225 is a wasteful number, since it uses less digits than its factorization.

15873225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211656 (or 211651 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 15873225 is about 3984.1216095897. The cubic root of 15873225 is about 251.3169174002.

The spelling of 15873225 in words is "fifteen million, eight hundred seventy-three thousand, two hundred twenty-five".