82545559 has 2 divisors, whose sum is σ = 82545560. Its totient is φ = 82545558.

The previous prime is 82545503. The next prime is 82545563. The reversal of 82545559 is 95554528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82545559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82546559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41272779 + 41272780.

It is an arithmetic number, because the mean of its divisors is an integer number (41272780).

Almost surely, 2^82545559 is an apocalyptic number.

82545559 is a deficient number, since it is larger than the sum of its proper divisors (1).

82545559 is an equidigital number, since it uses as much as digits as its factorization.

82545559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360000, while the sum is 43.

The square root of 82545559 is about 9085.4586565566. The cubic root of 82545559 is about 435.4095038384.

The spelling of 82545559 in words is "eighty-two million, five hundred forty-five thousand, five hundred fifty-nine".