82511227 has 2 divisors, whose sum is σ = 82511228. Its totient is φ = 82511226.

The previous prime is 82511153. The next prime is 82511257. The reversal of 82511227 is 72211528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82511227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82511195 and 82511204.

It is not a weakly prime, because it can be changed into another prime (82511257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41255613 + 41255614.

It is an arithmetic number, because the mean of its divisors is an integer number (41255614).

Almost surely, 2^82511227 is an apocalyptic number.

82511227 is a deficient number, since it is larger than the sum of its proper divisors (1).

82511227 is an equidigital number, since it uses as much as digits as its factorization.

82511227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 28.

The square root of 82511227 is about 9083.5690672775. The cubic root of 82511227 is about 435.3491309074.

The spelling of 82511227 in words is "eighty-two million, five hundred eleven thousand, two hundred twenty-seven".