82641253 has 2 divisors, whose sum is σ = 82641254. Its totient is φ = 82641252.

The previous prime is 82641193. The next prime is 82641259. The reversal of 82641253 is 35214628.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78552769 + 4088484 = 8863^2 + 2022^2 .

It is a cyclic number.

It is not a de Polignac number, because 82641253 - 2⁹ = 82640741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82641259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41320626 + 41320627.

It is an arithmetic number, because the mean of its divisors is an integer number (41320627).

Almost surely, 2^82641253 is an apocalyptic number.

It is an amenable number.

82641253 is a deficient number, since it is larger than the sum of its proper divisors (1).

82641253 is an equidigital number, since it uses as much as digits as its factorization.

82641253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 82641253 is about 9090.7234585593. The cubic root of 82641253 is about 435.5776937323.

The spelling of 82641253 in words is "eighty-two million, six hundred forty-one thousand, two hundred fifty-three".