82252213 has 2 divisors, whose sum is σ = 82252214. Its totient is φ = 82252212.

The previous prime is 82252199. The next prime is 82252223. The reversal of 82252213 is 31225228.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82137969 + 114244 = 9063^2 + 338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82252213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82252223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41126106 + 41126107.

It is an arithmetic number, because the mean of its divisors is an integer number (41126107).

Almost surely, 2^82252213 is an apocalyptic number.

It is an amenable number.

82252213 is a deficient number, since it is larger than the sum of its proper divisors (1).

82252213 is an equidigital number, since it uses as much as digits as its factorization.

82252213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 82252213 is about 9069.3005794273. The cubic root of 82252213 is about 434.8931132988.

It can be divided in two parts, 822 and 52213, that added together give a palindrome (53035).

The spelling of 82252213 in words is "eighty-two million, two hundred fifty-two thousand, two hundred thirteen".