8959569025 has 27 divisors (see below), whose sum is σ = 12218770249. Its totient is φ = 6512264000.

The previous prime is 8959569013. The next prime is 8959569049. The reversal of 8959569025 is 5209659598.

The square root of 8959569025 is 94655.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 101747569 + 8857821456 = 10087^2 + 94116^2 .

It is not a de Polignac number, because 8959569025 - 2¹¹ = 8959566977 is a prime.

It is a super-2 number, since 2×8959569025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5205165 + ... + 5206885.

Almost surely, 2^8959569025 is an apocalyptic number.

8959569025 is the 94655-th square number.

8959569025 is the 47328-th centered octagonal number.

It is an amenable number.

8959569025 is a deficient number, since it is larger than the sum of its proper divisors (3259201224).

8959569025 is an equidigital number, since it uses as much as digits as its factorization.

8959569025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474 (or 1737 counting only the distinct ones).

The product of its (nonzero) digits is 8748000, while the sum is 58.

The cubic root of 8959569025 is about 2076.9643390883.

The spelling of 8959569025 in words is "eight billion, nine hundred fifty-nine million, five hundred sixty-nine thousand, twenty-five".