115256520 has 80 divisors (see below), whose sum is σ = 387400860. Its totient is φ = 30734208.

The previous prime is 115256483. The next prime is 115256597. The reversal of 115256520 is 25652511.

115256520 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 5 + 652 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 107868996 + 7387524 = 10386^2 + 2718^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14547 + ... + 21026.

Almost surely, 2^115256520 is an apocalyptic number.

115256520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115256520 is an abundant number, since it is smaller than the sum of its proper divisors (272144340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115256520 is a wasteful number, since it uses less digits than its factorization.

115256520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35596 (or 35583 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 115256520 is about 10735.7589391715. The cubic root of 115256520 is about 486.6557221116.

The spelling of 115256520 in words is "one hundred fifteen million, two hundred fifty-six thousand, five hundred twenty".