8525398520 has 32 divisors (see below), whose sum is σ = 19507273200. Its totient is φ = 3352359168.

The previous prime is 8525398501. The next prime is 8525398547. The reversal of 8525398520 is 258935258.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803869 + ... + 1808588.

Almost surely, 2^8525398520 is an apocalyptic number.

It is an amenable number.

8525398520 is an abundant number, since it is smaller than the sum of its proper divisors (10981874680).

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

8525398520 is a wasteful number, since it uses less digits than its factorization.

8525398520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612527 (or 3612523 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 47.

The square root of 8525398520 is about 92333.0846446711. The cubic root of 8525398520 is about 2042.8582355541.

The spelling of 8525398520 in words is "eight billion, five hundred twenty-five million, three hundred ninety-eight thousand, five hundred twenty".