82545493 has 2 divisors, whose sum is σ = 82545494. Its totient is φ = 82545492.

The previous prime is 82545487. The next prime is 82545497. The reversal of 82545493 is 39454528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47238129 + 35307364 = 6873^2 + 5942^2 .

It is a cyclic number.

It is not a de Polignac number, because 82545493 - 2⁹ = 82544981 is a prime.

It is a super-2 number, since 2×82545493² = 13627516829226098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82545497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41272746 + 41272747.

It is an arithmetic number, because the mean of its divisors is an integer number (41272747).

Almost surely, 2^82545493 is an apocalyptic number.

It is an amenable number.

82545493 is a deficient number, since it is larger than the sum of its proper divisors (1).

82545493 is an equidigital number, since it uses as much as digits as its factorization.

82545493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The square root of 82545493 is about 9085.4550243783. The cubic root of 82545493 is about 435.4093877932.

It can be divided in two parts, 82545 and 493, that added together give a palindrome (83038).

The spelling of 82545493 in words is "eighty-two million, five hundred forty-five thousand, four hundred ninety-three".