115517225 has 24 divisors (see below), whose sum is σ = 146687040. Its totient is φ = 90216000.

The previous prime is 115517189. The next prime is 115517231. The reversal of 115517225 is 522715511.

It is not a de Polignac number, because 115517225 - 2¹⁰ = 115516201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321596 + ... + 321954.

It is an arithmetic number, because the mean of its divisors is an integer number (6111960).

Almost surely, 2^115517225 is an apocalyptic number.

It is an amenable number.

115517225 is a deficient number, since it is larger than the sum of its proper divisors (31169815).

115517225 is a wasteful number, since it uses less digits than its factorization.

115517225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its digits is 3500, while the sum is 29.

The square root of 115517225 is about 10747.8939797525. The cubic root of 115517225 is about 487.0223768261.

The spelling of 115517225 in words is "one hundred fifteen million, five hundred seventeen thousand, two hundred twenty-five".