82265219 has 4 divisors (see below), whose sum is σ = 82283544. Its totient is φ = 82246896.

The previous prime is 82265191. The next prime is 82265251. The reversal of 82265219 is 91256228.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82265219 - 2¹⁶ = 82199683 is a prime.

It is a super-2 number, since 2×82265219² = 13535132514235922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82265119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2639 + ... + 13095.

It is an arithmetic number, because the mean of its divisors is an integer number (20570886).

Almost surely, 2^82265219 is an apocalyptic number.

82265219 is a deficient number, since it is larger than the sum of its proper divisors (18325).

82265219 is a wasteful number, since it uses less digits than its factorization.

82265219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324.

The product of its digits is 17280, while the sum is 35.

The square root of 82265219 is about 9070.0175854295. The cubic root of 82265219 is about 434.9160343507.

The spelling of 82265219 in words is "eighty-two million, two hundred sixty-five thousand, two hundred nineteen".