115225421154520 has 32 divisors (see below), whose sum is σ = 265580543884320. Its totient is φ = 44966018010880.

The previous prime is 115225421154499. The next prime is 115225421154521. The reversal of 115225421154520 is 25451124522511.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115225421154521) 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, 35129699932 + ... + 35129703211.

It is an arithmetic number, because the mean of its divisors is an integer number (8299391996385).

Almost surely, 2^{115225421154520} is an apocalyptic number.

115225421154520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115225421154520 is an abundant number, since it is smaller than the sum of its proper divisors (150355122729800).

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

115225421154520 is a wasteful number, since it uses less digits than its factorization.

115225421154520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70259403195 (or 70259403191 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 40.

The spelling of 115225421154520 in words is "one hundred fifteen trillion, two hundred twenty-five billion, four hundred twenty-one million, one hundred fifty-four thousand, five hundred twenty".