622504261 has 2 divisors, whose sum is σ = 622504262. Its totient is φ = 622504260.

The previous prime is 622504241. The next prime is 622504291. The reversal of 622504261 is 162405226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 439740900 + 182763361 = 20970^2 + 13519^2 .

It is a cyclic number.

It is not a de Polignac number, because 622504261 - 2¹¹ = 622502213 is a prime.

It is a super-2 number, since 2×622504261² = 775023109926312242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622504241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311252130 + 311252131.

It is an arithmetic number, because the mean of its divisors is an integer number (311252131).

Almost surely, 2^622504261 is an apocalyptic number.

It is an amenable number.

622504261 is a deficient number, since it is larger than the sum of its proper divisors (1).

622504261 is an equidigital number, since it uses as much as digits as its factorization.

622504261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 622504261 is about 24950.0352905562. The cubic root of 622504261 is about 853.8484141914.

Adding to 622504261 its reverse (162405226), we get a palindrome (784909487).

The spelling of 622504261 in words is "six hundred twenty-two million, five hundred four thousand, two hundred sixty-one".