82502289 has 12 divisors (see below), whose sum is σ = 119789956. Its totient is φ = 54715392.

The previous prime is 82502281. The next prime is 82502297. The reversal of 82502289 is 98220528.

It is an interprime number because it is at equal distance from previous prime (82502281) and next prime (82502297).

It can be written as a sum of positive squares in 2 ways, for example, as 51365889 + 31136400 = 7167^2 + 5580^2 .

It is not a de Polignac number, because 82502289 - 2³ = 82502281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82502281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22012 + ... + 25485.

Almost surely, 2^82502289 is an apocalyptic number.

It is an amenable number.

82502289 is a deficient number, since it is larger than the sum of its proper divisors (37287667).

82502289 is a wasteful number, since it uses less digits than its factorization.

82502289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47696 (or 47693 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 82502289 is about 9083.0770667214. The cubic root of 82502289 is about 435.3334106587. Note that the first 3 decimals are identical.

The spelling of 82502289 in words is "eighty-two million, five hundred two thousand, two hundred eighty-nine".