115510225 has 6 divisors (see below), whose sum is σ = 143232710. Its totient is φ = 92408160.

The previous prime is 115510217. The next prime is 115510237. The reversal of 115510225 is 522015511.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8346321 + 107163904 = 2889^2 + 10352^2 .

It is not a de Polignac number, because 115510225 - 2³ = 115510217 is a prime.

It is a super-2 number, since 2×115510225² = 26685224159101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115510196 and 115510205.

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, 2310180 + ... + 2310229.

Almost surely, 2^115510225 is an apocalyptic number.

It is an amenable number.

115510225 is a deficient number, since it is larger than the sum of its proper divisors (27722485).

115510225 is an equidigital number, since it uses as much as digits as its factorization.

115510225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620419 (or 4620414 counting only the distinct ones).

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

The square root of 115510225 is about 10747.5683296269. The cubic root of 115510225 is about 487.0125392586.

Adding to 115510225 its reverse (522015511), we get a palindrome (637525736).

The spelling of 115510225 in words is "one hundred fifteen million, five hundred ten thousand, two hundred twenty-five".