115211255 has 16 divisors (see below), whose sum is σ = 144897984. Its totient is φ = 87774720.

The previous prime is 115211251. The next prime is 115211279. The reversal of 115211255 is 552112511.

It is not a de Polignac number, because 115211255 - 2² = 115211251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115211255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115211251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25637 + ... + 29793.

It is an arithmetic number, because the mean of its divisors is an integer number (9056124).

Almost surely, 2^115211255 is an apocalyptic number.

115211255 is a deficient number, since it is larger than the sum of its proper divisors (29686729).

115211255 is a wasteful number, since it uses less digits than its factorization.

115211255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426.

The product of its digits is 500, while the sum is 23.

The square root of 115211255 is about 10733.6505905493. The cubic root of 115211255 is about 486.5920052371.

Adding to 115211255 its reverse (552112511), we get a palindrome (667323766).

The spelling of 115211255 in words is "one hundred fifteen million, two hundred eleven thousand, two hundred fifty-five".