22275261 has 6 divisors (see below), whose sum is σ = 32175390. Its totient is φ = 14850168.

The previous prime is 22275223. The next prime is 22275263. The reversal of 22275261 is 16257222.

It can be written as a sum of positive squares in only one way, i.e., 13003236 + 9272025 = 3606^2 + 3045^2 .

It is not a de Polignac number, because 22275261 - 2¹⁴ = 22258877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22275263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1237506 + ... + 1237523.

It is an arithmetic number, because the mean of its divisors is an integer number (5362565).

Almost surely, 2^22275261 is an apocalyptic number.

It is an amenable number.

22275261 is a deficient number, since it is larger than the sum of its proper divisors (9900129).

22275261 is a wasteful number, since it uses less digits than its factorization.

22275261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475035 (or 2475032 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 22275261 is about 4719.6674670998. The cubic root of 22275261 is about 281.3677172411.

The spelling of 22275261 in words is "twenty-two million, two hundred seventy-five thousand, two hundred sixty-one".