652322581 has 2 divisors, whose sum is σ = 652322582. Its totient is φ = 652322580.

The previous prime is 652322557. The next prime is 652322591. The reversal of 652322581 is 185223256.

652322581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330694225 + 321628356 = 18185^2 + 17934^2 .

It is a cyclic number.

It is not a de Polignac number, because 652322581 - 2¹¹ = 652320533 is a prime.

It is a super-2 number, since 2×652322581² = 851049499365003122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (652322501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326161290 + 326161291.

It is an arithmetic number, because the mean of its divisors is an integer number (326161291).

Almost surely, 2^652322581 is an apocalyptic number.

It is an amenable number.

652322581 is a deficient number, since it is larger than the sum of its proper divisors (1).

652322581 is an equidigital number, since it uses as much as digits as its factorization.

652322581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 34.

The square root of 652322581 is about 25540.6065119840. The cubic root of 652322581 is about 867.2696278602.

The spelling of 652322581 in words is "six hundred fifty-two million, three hundred twenty-two thousand, five hundred eighty-one".