115551455 has 4 divisors (see below), whose sum is σ = 138661752. Its totient is φ = 92441160.

The previous prime is 115551433. The next prime is 115551461. The reversal of 115551455 is 554155511.

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

It is not a de Polignac number, because 115551455 - 2⁸ = 115551199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11555141 + ... + 11555150.

It is an arithmetic number, because the mean of its divisors is an integer number (34665438).

Almost surely, 2^115551455 is an apocalyptic number.

115551455 is a deficient number, since it is larger than the sum of its proper divisors (23110297).

115551455 is an equidigital number, since it uses as much as digits as its factorization.

115551455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23110296.

The product of its digits is 12500, while the sum is 32.

The square root of 115551455 is about 10749.4862667943. The cubic root of 115551455 is about 487.0704768089.

The spelling of 115551455 in words is "one hundred fifteen million, five hundred fifty-one thousand, four hundred fifty-five".