22505036 has 6 divisors (see below), whose sum is σ = 39383820. Its totient is φ = 11252516.

The previous prime is 22505033. The next prime is 22505047. The reversal of 22505036 is 63050522.

It is a happy number.

It is a super-2 number, since 2×22505036² = 1012953290722592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22505033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2813126 + ... + 2813133.

It is an arithmetic number, because the mean of its divisors is an integer number (6563970).

Almost surely, 2^22505036 is an apocalyptic number.

It is an amenable number.

22505036 is a deficient number, since it is larger than the sum of its proper divisors (16878784).

22505036 is a wasteful number, since it uses less digits than its factorization.

22505036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5626263 (or 5626261 counting only the distinct ones).

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

The square root of 22505036 is about 4743.9473015623. The cubic root of 22505036 is about 282.3318695706.

Adding to 22505036 its reverse (63050522), we get a palindrome (85555558).

The spelling of 22505036 in words is "twenty-two million, five hundred five thousand, thirty-six".