115505001 has 32 divisors (see below), whose sum is σ = 175737600. Its totient is φ = 74954880.

The previous prime is 115504997. The next prime is 115505003. The reversal of 115505001 is 100505511.

115505001 is a `hidden beast` number, since 115 + 50 + 500 + 1 = 666.

It is not a de Polignac number, because 115505001 - 2² = 115504997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115505003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170275 + ... + 170951.

It is an arithmetic number, because the mean of its divisors is an integer number (5491800).

Almost surely, 2^115505001 is an apocalyptic number.

It is an amenable number.

115505001 is a deficient number, since it is larger than the sum of its proper divisors (60232599).

115505001 is an equidigital number, since it uses as much as digits as its factorization.

115505001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 115505001 is about 10747.3252951607. The cubic root of 115505001 is about 487.0051973635.

The spelling of 115505001 in words is "one hundred fifteen million, five hundred five thousand, one".