115566505 has 8 divisors (see below), whose sum is σ = 139511232. Its totient is φ = 91898928.

The previous prime is 115566469. The next prime is 115566533. The reversal of 115566505 is 505665511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115566505 - 2⁹ = 115565993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68367 + ... + 70036.

It is an arithmetic number, because the mean of its divisors is an integer number (17438904).

Almost surely, 2^115566505 is an apocalyptic number.

It is an amenable number.

115566505 is a deficient number, since it is larger than the sum of its proper divisors (23944727).

115566505 is a wasteful number, since it uses less digits than its factorization.

115566505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138575.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 115566505 is about 10750.1862774558. The cubic root of 115566505 is about 487.0916220567.

The spelling of 115566505 in words is "one hundred fifteen million, five hundred sixty-six thousand, five hundred five".