22509064 has 8 divisors (see below), whose sum is σ = 42204510. Its totient is φ = 11254528.

The previous prime is 22509049. The next prime is 22509073. The reversal of 22509064 is 46090522.

It can be written as a sum of positive squares in only one way, i.e., 22486564 + 22500 = 4742^2 + 150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1406809 + ... + 1406824.

Almost surely, 2^22509064 is an apocalyptic number.

It is an amenable number.

22509064 is a deficient number, since it is larger than the sum of its proper divisors (19695446).

22509064 is a wasteful number, since it uses less digits than its factorization.

22509064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813639 (or 2813635 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 22509064 is about 4744.3718235400. The cubic root of 22509064 is about 282.3487126886.

Adding to 22509064 its reverse (46090522), we get a palindrome (68599586).

The spelling of 22509064 in words is "twenty-two million, five hundred nine thousand, sixty-four".