8609115525 has 12 divisors (see below), whose sum is σ = 14233737792. Its totient is φ = 4591528240.

The previous prime is 8609115523. The next prime is 8609115553. The reversal of 8609115525 is 5255119068.

It is a happy number.

It is not a de Polignac number, because 8609115525 - 2¹ = 8609115523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8609115521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57394029 + ... + 57394178.

It is an arithmetic number, because the mean of its divisors is an integer number (1186144816).

Almost surely, 2^8609115525 is an apocalyptic number.

It is an amenable number.

8609115525 is a deficient number, since it is larger than the sum of its proper divisors (5624622267).

8609115525 is a wasteful number, since it uses less digits than its factorization.

8609115525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114788220 (or 114788215 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 42.

The square root of 8609115525 is about 92785.3195554124. The cubic root of 8609115525 is about 2049.5232303912.

The spelling of 8609115525 in words is "eight billion, six hundred nine million, one hundred fifteen thousand, five hundred twenty-five".