115550249 has 2 divisors, whose sum is σ = 115550250. Its totient is φ = 115550248.

The previous prime is 115550243. The next prime is 115550251. The reversal of 115550249 is 942055511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114340249 + 1210000 = 10693^2 + 1100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115550249 is a prime.

Together with 115550251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115550243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57775124 + 57775125.

It is an arithmetic number, because the mean of its divisors is an integer number (57775125).

Almost surely, 2^115550249 is an apocalyptic number.

It is an amenable number.

115550249 is a deficient number, since it is larger than the sum of its proper divisors (1).

115550249 is an equidigital number, since it uses as much as digits as its factorization.

115550249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 115550249 is about 10749.4301709439. The cubic root of 115550249 is about 487.0687822996.

The spelling of 115550249 in words is "one hundred fifteen million, five hundred fifty thousand, two hundred forty-nine".