22552307 has 2 divisors, whose sum is σ = 22552308. Its totient is φ = 22552306.

The previous prime is 22552301. The next prime is 22552381. The reversal of 22552307 is 70325522.

22552307 is nontrivially palindromic in base 5.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22552307 - 2⁴ = 22552291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22552301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276153 + 11276154.

It is an arithmetic number, because the mean of its divisors is an integer number (11276154).

Almost surely, 2^22552307 is an apocalyptic number.

22552307 is a deficient number, since it is larger than the sum of its proper divisors (1).

22552307 is an equidigital number, since it uses as much as digits as its factorization.

22552307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 22552307 is about 4748.9269314236. The cubic root of 22552307 is about 282.5294072293.

Adding to 22552307 its reverse (70325522), we get a palindrome (92877829).

The spelling of 22552307 in words is "twenty-two million, five hundred fifty-two thousand, three hundred seven".