89115525 has 72 divisors (see below), whose sum is σ = 170405760. Its totient is φ = 45639360.

The previous prime is 89115503. The next prime is 89115527. The reversal of 89115525 is 52551198.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-89115525 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 89115525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89115527) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1681399 + ... + 1681451.

Almost surely, 2^89115525 is an apocalyptic number.

It is an amenable number.

89115525 is a deficient number, since it is larger than the sum of its proper divisors (81290235).

89115525 is a wasteful number, since it uses less digits than its factorization.

89115525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 108 counting only the distinct ones).

The product of its digits is 18000, while the sum is 36.

The square root of 89115525 is about 9440.1019591951. The cubic root of 89115525 is about 446.6676056885.

The spelling of 89115525 in words is "eighty-nine million, one hundred fifteen thousand, five hundred twenty-five".