22650261 has 8 divisors (see below), whose sum is σ = 31789920. Its totient is φ = 14305392.

The previous prime is 22650259. The next prime is 22650263. The reversal of 22650261 is 16205622.

It is an interprime number because it is at equal distance from previous prime (22650259) and next prime (22650263).

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

It is not a de Polignac number, because 22650261 - 2¹ = 22650259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22650263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198630 + ... + 198743.

It is an arithmetic number, because the mean of its divisors is an integer number (3973740).

Almost surely, 2^22650261 is an apocalyptic number.

It is an amenable number.

22650261 is a deficient number, since it is larger than the sum of its proper divisors (9139659).

22650261 is a wasteful number, since it uses less digits than its factorization.

22650261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397395.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22650261 is about 4759.2290342029. The cubic root of 22650261 is about 282.9378638029.

Adding to 22650261 its reverse (16205622), we get a palindrome (38855883).

The spelling of 22650261 in words is "twenty-two million, six hundred fifty thousand, two hundred sixty-one".