1115552513525 has 12 divisors (see below), whose sum is σ = 1391280989892. Its totient is φ = 887283383040.

The previous prime is 1115552513519. The next prime is 1115552513527. The reversal of 1115552513525 is 5253152555111.

It can be written as a sum of positive squares in 6 ways, for example, as 83704905124 + 1031847608401 = 289318^2 + 1015799^2 .

It is not a de Polignac number, because 1115552513525 - 2⁸ = 1115552513269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115552513527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128961284 + ... + 128969933.

It is an arithmetic number, because the mean of its divisors is an integer number (115940082491).

Almost surely, 2^{1115552513525} is an apocalyptic number.

It is an amenable number.

1115552513525 is a deficient number, since it is larger than the sum of its proper divisors (275728476367).

1115552513525 is a wasteful number, since it uses less digits than its factorization.

1115552513525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257931400 (or 257931395 counting only the distinct ones).

The product of its digits is 187500, while the sum is 41.

The spelling of 1115552513525 in words is "one trillion, one hundred fifteen billion, five hundred fifty-two million, five hundred thirteen thousand, five hundred twenty-five".