115212550 has 12 divisors (see below), whose sum is σ = 214295436. Its totient is φ = 46085000.

The previous prime is 115212533. The next prime is 115212569. The reversal of 115212550 is 55212511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152076 + ... + 1152175.

It is an arithmetic number, because the mean of its divisors is an integer number (17857953).

Almost surely, 2^115212550 is an apocalyptic number.

115212550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115212550 is a deficient number, since it is larger than the sum of its proper divisors (99082886).

115212550 is a wasteful number, since it uses less digits than its factorization.

115212550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304263 (or 2304258 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 115212550 is about 10733.7109146837. The cubic root of 115212550 is about 486.5938283642.

The spelling of 115212550 in words is "one hundred fifteen million, two hundred twelve thousand, five hundred fifty".