520622653 has 2 divisors, whose sum is σ = 520622654. Its totient is φ = 520622652.

The previous prime is 520622651. The next prime is 520622699. The reversal of 520622653 is 356226025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 510624409 + 9998244 = 22597^2 + 3162^2 .

It is a cyclic number.

It is not a de Polignac number, because 520622653 - 2¹ = 520622651 is a prime.

Together with 520622651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520622651) 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, 260311326 + 260311327.

It is an arithmetic number, because the mean of its divisors is an integer number (260311327).

Almost surely, 2^520622653 is an apocalyptic number.

It is an amenable number.

520622653 is a deficient number, since it is larger than the sum of its proper divisors (1).

520622653 is an equidigital number, since it uses as much as digits as its factorization.

520622653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 520622653 is about 22817.1569876705. The cubic root of 520622653 is about 804.4659874069.

Adding to 520622653 its reverse (356226025), we get a palindrome (876848678).

The spelling of 520622653 in words is "five hundred twenty million, six hundred twenty-two thousand, six hundred fifty-three".