82550911 has 2 divisors, whose sum is σ = 82550912. Its totient is φ = 82550910.

The previous prime is 82550899. The next prime is 82550947. The reversal of 82550911 is 11905528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82550911 - 2⁹ = 82550399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82550981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41275455 + 41275456.

It is an arithmetic number, because the mean of its divisors is an integer number (41275456).

Almost surely, 2^82550911 is an apocalyptic number.

82550911 is a deficient number, since it is larger than the sum of its proper divisors (1).

82550911 is an equidigital number, since it uses as much as digits as its factorization.

82550911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 82550911 is about 9085.7531883713. The cubic root of 82550911 is about 435.4189138391.

The spelling of 82550911 in words is "eighty-two million, five hundred fifty thousand, nine hundred eleven".