52320641 has 2 divisors, whose sum is σ = 52320642. Its totient is φ = 52320640.

The previous prime is 52320613. The next prime is 52320643. The reversal of 52320641 is 14602325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36954241 + 15366400 = 6079^2 + 3920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52320641 is a prime.

It is a super-3 number, since 3×52320641³ (a number of 24 digits) contains 333 as substring.

Together with 52320643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52320643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26160320 + 26160321.

It is an arithmetic number, because the mean of its divisors is an integer number (26160321).

Almost surely, 2^52320641 is an apocalyptic number.

It is an amenable number.

52320641 is a deficient number, since it is larger than the sum of its proper divisors (1).

52320641 is an equidigital number, since it uses as much as digits as its factorization.

52320641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52320641 is about 7233.3008371006. The cubic root of 52320641 is about 374.0167212061.

Adding to 52320641 its reverse (14602325), we get a palindrome (66922966).

The spelling of 52320641 in words is "fifty-two million, three hundred twenty thousand, six hundred forty-one".