562621 has 2 divisors, whose sum is σ = 562622. Its totient is φ = 562620.

The previous prime is 562613. The next prime is 562631. The reversal of 562621 is 126265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 121 = 750^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 562621 - 2³ = 562613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 562592 and 562601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (562631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281310 + 281311.

It is an arithmetic number, because the mean of its divisors is an integer number (281311).

2⁵⁶²⁶²¹ is an apocalyptic number.

It is an amenable number.

562621 is a deficient number, since it is larger than the sum of its proper divisors (1).

562621 is an equidigital number, since it uses as much as digits as its factorization.

562621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 562621 is about 750.0806623291. The cubic root of 562621 is about 82.5540998083.

Adding to 562621 its reverse (126265), we get a palindrome (688886).

It can be divided in two parts, 5 and 62621, that added together give a palindrome (62626).

The spelling of 562621 in words is "five hundred sixty-two thousand, six hundred twenty-one".