82225807 has 4 divisors (see below), whose sum is σ = 83266720. Its totient is φ = 81184896.

The previous prime is 82225789. The next prime is 82225811. The reversal of 82225807 is 70852228.

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 82225807 - 2¹¹ = 82223759 is a prime.

It is a super-2 number, since 2×82225807² = 13522166673602498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82225837) 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, 520338 + ... + 520495.

It is an arithmetic number, because the mean of its divisors is an integer number (20816680).

Almost surely, 2^82225807 is an apocalyptic number.

82225807 is a deficient number, since it is larger than the sum of its proper divisors (1040913).

82225807 is a wasteful number, since it uses less digits than its factorization.

82225807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040912.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 82225807 is about 9067.8446722471. The cubic root of 82225807 is about 434.8465693974.

The spelling of 82225807 in words is "eighty-two million, two hundred twenty-five thousand, eight hundred seven".