115825515 has 16 divisors (see below), whose sum is σ = 199576608. Its totient is φ = 57021696.

The previous prime is 115825499. The next prime is 115825561. The reversal of 115825515 is 515528511.

It is not a de Polignac number, because 115825515 - 2⁴ = 115825499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296794 + ... + 297183.

It is an arithmetic number, because the mean of its divisors is an integer number (12473538).

Almost surely, 2^115825515 is an apocalyptic number.

115825515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115825515 is a deficient number, since it is larger than the sum of its proper divisors (83751093).

115825515 is a wasteful number, since it uses less digits than its factorization.

115825515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593998.

The product of its digits is 10000, while the sum is 33.

The square root of 115825515 is about 10762.2263031401. The cubic root of 115825515 is about 487.4552437544.

The spelling of 115825515 in words is "one hundred fifteen million, eight hundred twenty-five thousand, five hundred fifteen".