115525513 has 2 divisors, whose sum is σ = 115525514. Its totient is φ = 115525512.

The previous prime is 115525469. The next prime is 115525537. The reversal of 115525513 is 315525511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82955664 + 32569849 = 9108^2 + 5707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115525513 is a prime.

It is a super-2 number, since 2×115525513² = 26692288307826338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115525583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57762756 + 57762757.

It is an arithmetic number, because the mean of its divisors is an integer number (57762757).

Almost surely, 2^115525513 is an apocalyptic number.

It is an amenable number.

115525513 is a deficient number, since it is larger than the sum of its proper divisors (1).

115525513 is an equidigital number, since it uses as much as digits as its factorization.

115525513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3750, while the sum is 28.

The square root of 115525513 is about 10748.2795367445. The cubic root of 115525513 is about 487.0340239923.

The spelling of 115525513 in words is "one hundred fifteen million, five hundred twenty-five thousand, five hundred thirteen".