82225994 has 4 divisors (see below), whose sum is σ = 123338994. Its totient is φ = 41112996.

The previous prime is 82225961. The next prime is 82226009. The reversal of 82225994 is 49952228.

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

It can be written as a sum of positive squares in only one way, i.e., 80335369 + 1890625 = 8963^2 + 1375^2 .

It is a super-2 number, since 2×82225994² = 13522228178576072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20556497 + ... + 20556500.

Almost surely, 2^82225994 is an apocalyptic number.

82225994 is a deficient number, since it is larger than the sum of its proper divisors (41113000).

82225994 is a wasteful number, since it uses less digits than its factorization.

82225994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41112999.

The product of its digits is 103680, while the sum is 41.

The square root of 82225994 is about 9067.8549834015. The cubic root of 82225994 is about 434.8468990435.

The spelling of 82225994 in words is "eighty-two million, two hundred twenty-five thousand, nine hundred ninety-four".