82256865 has 32 divisors (see below), whose sum is σ = 135983232. Its totient is φ = 42432000.

The previous prime is 82256861. The next prime is 82256879. The reversal of 82256865 is 56865228.

It is not a de Polignac number, because 82256865 - 2² = 82256861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82256861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80055 + ... + 81075.

It is an arithmetic number, because the mean of its divisors is an integer number (4249476).

Almost surely, 2^82256865 is an apocalyptic number.

It is an amenable number.

82256865 is a deficient number, since it is larger than the sum of its proper divisors (53726367).

82256865 is a wasteful number, since it uses less digits than its factorization.

82256865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its digits is 230400, while the sum is 42.

The square root of 82256865 is about 9069.5570454130. The cubic root of 82256865 is about 434.9013120027.

The spelling of 82256865 in words is "eighty-two million, two hundred fifty-six thousand, eight hundred sixty-five".