115225111533520 has 20 divisors (see below), whose sum is σ = 267898384315620. Its totient is φ = 46090044613376.

The previous prime is 115225111533473. The next prime is 115225111533601. The reversal of 115225111533520 is 25335111522511.

It can be written as a sum of positive squares in 2 ways, for example, as 81845096861584 + 33380014671936 = 9046828^2 + 5777544^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×115225111533520³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115225111533520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720156947005 + ... + 720156947164.

It is an arithmetic number, because the mean of its divisors is an integer number (13394919215781).

Almost surely, 2^{115225111533520} is an apocalyptic number.

115225111533520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115225111533520 is an abundant number, since it is smaller than the sum of its proper divisors (152673272782100).

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

115225111533520 is a wasteful number, since it uses less digits than its factorization.

115225111533520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440313894182 (or 1440313894176 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 115225111533520 in words is "one hundred fifteen trillion, two hundred twenty-five billion, one hundred eleven million, five hundred thirty-three thousand, five hundred twenty".