22065530 has 24 divisors (see below), whose sum is σ = 40447836. Its totient is φ = 8666880.

The previous prime is 22065481. The next prime is 22065553. The reversal of 22065530 is 3556022.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 619369 + 21446161 = 787^2 + 4631^2 .

It is a super-2 number, since 2×22065530² = 973775228361800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22065496 and 22065505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36914 + ... + 37506.

Almost surely, 2^22065530 is an apocalyptic number.

22065530 is a deficient number, since it is larger than the sum of its proper divisors (18382306).

22065530 is an equidigital number, since it uses as much as digits as its factorization.

22065530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 22065530 is about 4697.3960871955. The cubic root of 22065530 is about 280.4818658358.

The spelling of 22065530 in words is "twenty-two million, sixty-five thousand, five hundred thirty".