89689139089225 has 81 divisors (see below), whose sum is σ = 121061544286527. Its totient is φ = 65885134423680.

The previous prime is 89689139089217. The next prime is 89689139089241. The reversal of 89689139089225 is 52298093198698.

The square root of 89689139089225 is 9470435.

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

It can be written as a sum of positive squares in 13 ways, for example, as 74337694168761 + 15351444920464 = 8621931^2 + 3918092^2 .

It is not a de Polignac number, because 89689139089225 - 2³ = 89689139089217 is a prime.

It is a super-2 number, since 2×89689139089225² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 225917226727 + ... + 225917227123.

Almost surely, 2^{89689139089225} is an apocalyptic number.

89689139089225 is the 9470435-th square number.

89689139089225 is the 4735218-th centered octagonal number.

It is an amenable number.

89689139089225 is a deficient number, since it is larger than the sum of its proper divisors (31372405197302).

89689139089225 is an frugal number, since it uses more digits than its factorization.

89689139089225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 1209323520, while the sum is 79.

The spelling of 89689139089225 in words is "eighty-nine trillion, six hundred eighty-nine billion, one hundred thirty-nine million, eighty-nine thousand, two hundred twenty-five".