115531525 has 6 divisors (see below), whose sum is σ = 143259122. Its totient is φ = 92425200.

The previous prime is 115531511. The next prime is 115531543. The reversal of 115531525 is 525135511.

It can be written as a sum of positive squares in 3 ways, for example, as 5239521 + 110292004 = 2289^2 + 10502^2 .

It is not a de Polignac number, because 115531525 - 2¹⁹ = 115007237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115531493 and 115531502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2310606 + ... + 2310655.

Almost surely, 2^115531525 is an apocalyptic number.

It is an amenable number.

115531525 is a deficient number, since it is larger than the sum of its proper divisors (27727597).

115531525 is an equidigital number, since it uses as much as digits as its factorization.

115531525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4621271 (or 4621266 counting only the distinct ones).

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

The square root of 115531525 is about 10748.5592057727. The cubic root of 115531525 is about 487.0424723361.

The spelling of 115531525 in words is "one hundred fifteen million, five hundred thirty-one thousand, five hundred twenty-five".