22550623 has 2 divisors, whose sum is σ = 22550624. Its totient is φ = 22550622.

The previous prime is 22550621. The next prime is 22550639. The reversal of 22550623 is 32605522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22550623 - 2¹ = 22550621 is a prime.

Together with 22550621, it forms a pair of twin primes.

It is equal to p_1421656 and since 22550623 and 1421656 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22550621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11275311 + 11275312.

It is an arithmetic number, because the mean of its divisors is an integer number (11275312).

Almost surely, 2^22550623 is an apocalyptic number.

22550623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22550623 is an equidigital number, since it uses as much as digits as its factorization.

22550623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 22550623 is about 4748.7496249013. The cubic root of 22550623 is about 282.5223748169.

The spelling of 22550623 in words is "twenty-two million, five hundred fifty thousand, six hundred twenty-three".