622564601 has 2 divisors, whose sum is σ = 622564602. Its totient is φ = 622564600.

The previous prime is 622564589. The next prime is 622564669. The reversal of 622564601 is 106465226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622003600 + 561001 = 24940^2 + 749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-622564601 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (622564001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311282300 + 311282301.

It is an arithmetic number, because the mean of its divisors is an integer number (311282301).

Almost surely, 2^622564601 is an apocalyptic number.

It is an amenable number.

622564601 is a deficient number, since it is larger than the sum of its proper divisors (1).

622564601 is an equidigital number, since it uses as much as digits as its factorization.

622564601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 622564601 is about 24951.2444779815. The cubic root of 622564601 is about 853.8760014450.

The spelling of 622564601 in words is "six hundred twenty-two million, five hundred sixty-four thousand, six hundred one".