622622251 has 2 divisors, whose sum is σ = 622622252. Its totient is φ = 622622250.

The previous prime is 622622239. The next prime is 622622281. The reversal of 622622251 is 152226226.

622622251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622622251 - 2⁵ = 622622219 is a prime.

It is not a weakly prime, because it can be changed into another prime (622622281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311311125 + 311311126.

It is an arithmetic number, because the mean of its divisors is an integer number (311311126).

Almost surely, 2^622622251 is an apocalyptic number.

622622251 is a deficient number, since it is larger than the sum of its proper divisors (1).

622622251 is an equidigital number, since it uses as much as digits as its factorization.

622622251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 622622251 is about 24952.3997042369. The cubic root of 622622251 is about 853.9023571742.

Adding to 622622251 its reverse (152226226), we get a palindrome (774848477).

The spelling of 622622251 in words is "six hundred twenty-two million, six hundred twenty-two thousand, two hundred fifty-one".