115502557 has 2 divisors, whose sum is σ = 115502558. Its totient is φ = 115502556.

The previous prime is 115502533. The next prime is 115502579. The reversal of 115502557 is 755205511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98684356 + 16818201 = 9934^2 + 4101^2 .

It is a cyclic number.

It is not a de Polignac number, because 115502557 - 2²³ = 107113949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115502507) 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 as a sum of consecutive naturals, namely, 57751278 + 57751279.

It is an arithmetic number, because the mean of its divisors is an integer number (57751279).

Almost surely, 2^115502557 is an apocalyptic number.

It is an amenable number.

115502557 is a deficient number, since it is larger than the sum of its proper divisors (1).

115502557 is an equidigital number, since it uses as much as digits as its factorization.

115502557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8750, while the sum is 31.

The square root of 115502557 is about 10747.2115918502. The cubic root of 115502557 is about 487.0017624499.

The spelling of 115502557 in words is "one hundred fifteen million, five hundred two thousand, five hundred fifty-seven".