82253231 has 2 divisors, whose sum is σ = 82253232. Its totient is φ = 82253230.

The previous prime is 82253219. The next prime is 82253263. The reversal of 82253231 is 13235228.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82253231 - 2¹⁸ = 81991087 is a prime.

It is a super-2 number, since 2×82253231² = 13531188019878722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82253231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82253291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41126615 + 41126616.

It is an arithmetic number, because the mean of its divisors is an integer number (41126616).

Almost surely, 2^82253231 is an apocalyptic number.

82253231 is a deficient number, since it is larger than the sum of its proper divisors (1).

82253231 is an equidigital number, since it uses as much as digits as its factorization.

82253231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 82253231 is about 9069.3567026554. The cubic root of 82253231 is about 434.8949074526.

Adding to 82253231 its reverse (13235228), we get a palindrome (95488459).

The spelling of 82253231 in words is "eighty-two million, two hundred fifty-three thousand, two hundred thirty-one".