622557361 has 2 divisors, whose sum is σ = 622557362. Its totient is φ = 622557360.

The previous prime is 622557343. The next prime is 622557409. The reversal of 622557361 is 163755226.

622557361 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 can be written as a sum of positive squares in only one way, i.e., 577921600 + 44635761 = 24040^2 + 6681^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622557361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622557361.

It is not a weakly prime, because it can be changed into another prime (622557461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311278680 + 311278681.

It is an arithmetic number, because the mean of its divisors is an integer number (311278681).

Almost surely, 2^622557361 is an apocalyptic number.

It is an amenable number.

622557361 is a deficient number, since it is larger than the sum of its proper divisors (1).

622557361 is an equidigital number, since it uses as much as digits as its factorization.

622557361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 622557361 is about 24951.0993946159. The cubic root of 622557361 is about 853.8726914344.

The spelling of 622557361 in words is "six hundred twenty-two million, five hundred fifty-seven thousand, three hundred sixty-one".