115220055 has 8 divisors (see below), whose sum is σ = 184352112. Its totient is φ = 61450688.

The previous prime is 115220029. The next prime is 115220057. The reversal of 115220055 is 550022511.

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 115220055 - 2⁶ = 115219991 is a prime.

It is a super-2 number, since 2×115220055² = 26551322148406050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115220057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3840654 + ... + 3840683.

It is an arithmetic number, because the mean of its divisors is an integer number (23044014).

Almost surely, 2^115220055 is an apocalyptic number.

115220055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115220055 is a deficient number, since it is larger than the sum of its proper divisors (69132057).

115220055 is an equidigital number, since it uses as much as digits as its factorization.

115220055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681345.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 115220055 is about 10734.0605084935. The cubic root of 115220055 is about 486.6043937855.

Adding to 115220055 its reverse (550022511), we get a palindrome (665242566).

The spelling of 115220055 in words is "one hundred fifteen million, two hundred twenty thousand, fifty-five".