52643449 has 2 divisors, whose sum is σ = 52643450. Its totient is φ = 52643448.

The previous prime is 52643369. The next prime is 52643473. The reversal of 52643449 is 94434625.

It is a happy number.

52643449 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., 48399849 + 4243600 = 6957^2 + 2060^2 .

It is a cyclic number.

It is not a de Polignac number, because 52643449 - 2¹⁵ = 52610681 is a prime.

It is not a weakly prime, because it can be changed into another prime (52643249) 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, 26321724 + 26321725.

It is an arithmetic number, because the mean of its divisors is an integer number (26321725).

Almost surely, 2^52643449 is an apocalyptic number.

It is an amenable number.

52643449 is a deficient number, since it is larger than the sum of its proper divisors (1).

52643449 is an equidigital number, since it uses as much as digits as its factorization.

52643449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 52643449 is about 7255.5805419001. The cubic root of 52643449 is about 374.7843477117.

The spelling of 52643449 in words is "fifty-two million, six hundred forty-three thousand, four hundred forty-nine".