115525620 has 144 divisors (see below), whose sum is σ = 403148928. Its totient is φ = 26231040.

The previous prime is 115525601. The next prime is 115525651. The reversal of 115525620 is 26525511.

115525620 is a `hidden beast` number, since 1 + 15 + 5 + 25 + 620 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 348855 + ... + 349185.

Almost surely, 2^115525620 is an apocalyptic number.

115525620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115525620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201574464).

115525620 is an abundant number, since it is smaller than the sum of its proper divisors (287623308).

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

115525620 is a wasteful number, since it uses less digits than its factorization.

115525620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 625 counting only the distinct ones).

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

The square root of 115525620 is about 10748.2845142841. The cubic root of 115525620 is about 487.0341743562.

The spelling of 115525620 in words is "one hundred fifteen million, five hundred twenty-five thousand, six hundred twenty".