55115115 has 16 divisors (see below), whose sum is σ = 96201216. Its totient is φ = 26722400.

The previous prime is 55115083. The next prime is 55115129. The reversal of 55115115 is 51151155.

It is not a de Polignac number, because 55115115 - 2⁵ = 55115083 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166851 + ... + 167180.

It is an arithmetic number, because the mean of its divisors is an integer number (6012576).

Almost surely, 2^55115115 is an apocalyptic number.

55115115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55115115 is a deficient number, since it is larger than the sum of its proper divisors (41086101).

55115115 is a wasteful number, since it uses less digits than its factorization.

55115115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334050.

The product of its digits is 625, while the sum is 24.

The square root of 55115115 is about 7423.9554820864. The cubic root of 55115115 is about 380.5603805033.

The spelling of 55115115 in words is "fifty-five million, one hundred fifteen thousand, one hundred fifteen".