115552513 has 4 divisors (see below), whose sum is σ = 116396100. Its totient is φ = 114708928.

The previous prime is 115552499. The next prime is 115552537. The reversal of 115552513 is 315255511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39025009 + 76527504 = 6247^2 + 8748^2 .

It is a cyclic number.

It is not a de Polignac number, because 115552513 - 2⁹ = 115552001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115552313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421588 + ... + 421861.

It is an arithmetic number, because the mean of its divisors is an integer number (29099025).

Almost surely, 2^115552513 is an apocalyptic number.

It is an amenable number.

115552513 is a deficient number, since it is larger than the sum of its proper divisors (843587).

115552513 is an equidigital number, since it uses as much as digits as its factorization.

115552513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843586.

The product of its digits is 3750, while the sum is 28.

The square root of 115552513 is about 10749.5354783358. The cubic root of 115552513 is about 487.0719633588.

The spelling of 115552513 in words is "one hundred fifteen million, five hundred fifty-two thousand, five hundred thirteen".