115252520 has 32 divisors (see below), whose sum is σ = 274573800. Its totient is φ = 43388928.

The previous prime is 115252481. The next prime is 115252523. The reversal of 115252520 is 25252511.

It can be written as a sum of positive squares in 4 ways, for example, as 114875524 + 376996 = 10718^2 + 614^2 .

It is not an unprimeable number, because it can be changed into a prime (115252523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84065 + ... + 85424.

Almost surely, 2^115252520 is an apocalyptic number.

115252520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115252520 is an abundant number, since it is smaller than the sum of its proper divisors (159321280).

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

115252520 is a wasteful number, since it uses less digits than its factorization.

115252520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169517 (or 169513 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 115252520 is about 10735.5726442514. The cubic root of 115252520 is about 486.6500922192.

Subtracting from 115252520 its reverse (25252511), we obtain a palindrome (90000009).

The spelling of 115252520 in words is "one hundred fifteen million, two hundred fifty-two thousand, five hundred twenty".