22566546 has 16 divisors (see below), whose sum is σ = 50148000. Its totient is φ = 7522164.

The previous prime is 22566539. The next prime is 22566571. The reversal of 22566546 is 64566522.

It is a self number, because there is not a number n which added to its sum of digits gives 22566546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208896 + ... + 209003.

It is an arithmetic number, because the mean of its divisors is an integer number (3134250).

Almost surely, 2^22566546 is an apocalyptic number.

22566546 is an abundant number, since it is smaller than the sum of its proper divisors (27581454).

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

22566546 is a wasteful number, since it uses less digits than its factorization.

22566546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417910 (or 417904 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 22566546 is about 4750.4258756453. The cubic root of 22566546 is about 282.5888555430.

The spelling of 22566546 in words is "twenty-two million, five hundred sixty-six thousand, five hundred forty-six".