22750165 has 8 divisors (see below), whose sum is σ = 28906200. Its totient is φ = 17129472.

The previous prime is 22750157. The next prime is 22750193. The reversal of 22750165 is 56105722.

It can be written as a sum of positive squares in 4 ways, for example, as 4848804 + 17901361 = 2202^2 + 4231^2 .

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

It is not a de Polignac number, because 22750165 - 2³ = 22750157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133740 + ... + 133909.

It is an arithmetic number, because the mean of its divisors is an integer number (3613275).

Almost surely, 2^22750165 is an apocalyptic number.

It is an amenable number.

22750165 is a deficient number, since it is larger than the sum of its proper divisors (6156035).

22750165 is a wasteful number, since it uses less digits than its factorization.

22750165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267671.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 22750165 is about 4769.7133037532. The cubic root of 22750165 is about 283.3532404314.

Adding to 22750165 its reverse (56105722), we get a palindrome (78855887).

The spelling of 22750165 in words is "twenty-two million, seven hundred fifty thousand, one hundred sixty-five".