115025204520 has 128 divisors (see below), whose sum is σ = 383538758400. Its totient is φ = 30663675648.

The previous prime is 115025204467. The next prime is 115025204557. The reversal of 115025204520 is 25402520511.

115025204520 is a `hidden beast` number, since 115 + 0 + 2 + 5 + 20 + 4 + 520 = 666.

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 31 ways as a sum of consecutive naturals, for example, 3794062 + ... + 3824258.

It is an arithmetic number, because the mean of its divisors is an integer number (2996396550).

Almost surely, 2^115025204520 is an apocalyptic number.

115025204520 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 115025204520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191769379200).

115025204520 is an abundant number, since it is smaller than the sum of its proper divisors (268513553880).

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

115025204520 is a wasteful number, since it uses less digits than its factorization.

115025204520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33744 (or 33734 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 115025204520 in words is "one hundred fifteen billion, twenty-five million, two hundred four thousand, five hundred twenty".