82526287 has 4 divisors (see below), whose sum is σ = 82582416. Its totient is φ = 82470160.

The previous prime is 82526267. The next prime is 82526299. The reversal of 82526287 is 78262528.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82526287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82526237) 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 3 ways as a sum of consecutive naturals, for example, 25798 + ... + 28819.

It is an arithmetic number, because the mean of its divisors is an integer number (20645604).

Almost surely, 2^82526287 is an apocalyptic number.

82526287 is a deficient number, since it is larger than the sum of its proper divisors (56129).

82526287 is a wasteful number, since it uses less digits than its factorization.

82526287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56128.

The product of its digits is 107520, while the sum is 40.

The square root of 82526287 is about 9084.3979987669. The cubic root of 82526287 is about 435.3756160267.

The spelling of 82526287 in words is "eighty-two million, five hundred twenty-six thousand, two hundred eighty-seven".