82549513 has 2 divisors, whose sum is σ = 82549514. Its totient is φ = 82549512.

The previous prime is 82549451. The next prime is 82549517. The reversal of 82549513 is 31594528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80335369 + 2214144 = 8963^2 + 1488^2 .

It is a cyclic number.

It is not a de Polignac number, because 82549513 - 2²⁵ = 48995081 is a prime.

It is not a weakly prime, because it can be changed into another prime (82549517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41274756 + 41274757.

It is an arithmetic number, because the mean of its divisors is an integer number (41274757).

Almost surely, 2^82549513 is an apocalyptic number.

It is an amenable number.

82549513 is a deficient number, since it is larger than the sum of its proper divisors (1).

82549513 is an equidigital number, since it uses as much as digits as its factorization.

82549513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 37.

The square root of 82549513 is about 9085.6762544128. The cubic root of 82549513 is about 435.4164558849.

The spelling of 82549513 in words is "eighty-two million, five hundred forty-nine thousand, five hundred thirteen".