82225530 has 40 divisors (see below), whose sum is σ = 221097492. Its totient is φ = 21926592.

The previous prime is 82225489. The next prime is 82225531. The reversal of 82225530 is 3552228.

It can be written as a sum of positive squares in 2 ways, for example, as 78269409 + 3956121 = 8847^2 + 1989^2 .

It is a super-2 number, since 2×82225530² = 13522075567561800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 82225494 and 82225503.

It is not an unprimeable number, because it can be changed into a prime (82225531) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49947 + ... + 51566.

Almost surely, 2^82225530 is an apocalyptic number.

82225530 is an abundant number, since it is smaller than the sum of its proper divisors (138871962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82225530 is a wasteful number, since it uses less digits than its factorization.

82225530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101532 (or 101523 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 82225530 is about 9067.8293984834. The cubic root of 82225530 is about 434.8460810972.

Adding to 82225530 its reverse (3552228), we get a palindrome (85777758).

The spelling of 82225530 in words is "eighty-two million, two hundred twenty-five thousand, five hundred thirty".