80526589 has 12 divisors (see below), whose sum is σ = 95323228. Its totient is φ = 67573440.

The previous prime is 80526553. The next prime is 80526601. The reversal of 80526589 is 98562508.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 74563225 = 2442^2 + 8635^2 .

It is not a de Polignac number, because 80526589 - 2⁷ = 80526461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80526529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24024 + ... + 27169.

Almost surely, 2^80526589 is an apocalyptic number.

It is an amenable number.

80526589 is a deficient number, since it is larger than the sum of its proper divisors (14796639).

80526589 is a wasteful number, since it uses less digits than its factorization.

80526589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51228 (or 51217 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 80526589 is about 8973.6608471682. The cubic root of 80526589 is about 431.8302892051.

It can be divided in two parts, 8052 and 6589, that added together give a palindrome (14641).

The spelling of 80526589 in words is "eighty million, five hundred twenty-six thousand, five hundred eighty-nine".