22502066 has 8 divisors (see below), whose sum is σ = 33794220. Its totient is φ = 11237328.

The previous prime is 22502059. The next prime is 22502083. The reversal of 22502066 is 66020522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19989841 + 2512225 = 4471^2 + 1585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4661 + ... + 8168.

Almost surely, 2^22502066 is an apocalyptic number.

22502066 is a deficient number, since it is larger than the sum of its proper divisors (11292154).

22502066 is a wasteful number, since it uses less digits than its factorization.

22502066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13708.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22502066 is about 4743.6342607752. The cubic root of 22502066 is about 282.3194492018.

Adding to 22502066 its reverse (66020522), we get a palindrome (88522588).

The spelling of 22502066 in words is "twenty-two million, five hundred two thousand, sixty-six".