22651065 has 24 divisors (see below), whose sum is σ = 40222728. Its totient is φ = 11784960.

The previous prime is 22651051. The next prime is 22651073. The reversal of 22651065 is 56015622.

22651065 is a `hidden beast` number, since 2 + 2 + 651 + 0 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 944784 + 21706281 = 972^2 + 4659^2 .

It is not a de Polignac number, because 22651065 - 2¹¹ = 22649017 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4294 + ... + 7983.

It is an arithmetic number, because the mean of its divisors is an integer number (1675947).

Almost surely, 2^22651065 is an apocalyptic number.

It is an amenable number.

22651065 is a deficient number, since it is larger than the sum of its proper divisors (17571663).

22651065 is a wasteful number, since it uses less digits than its factorization.

22651065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12329 (or 12326 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22651065 is about 4759.3135009159. The cubic root of 22651065 is about 282.9412115105.

Adding to 22651065 its reverse (56015622), we get a palindrome (78666687).

The spelling of 22651065 in words is "twenty-two million, six hundred fifty-one thousand, sixty-five".