52208389 has 2 divisors, whose sum is σ = 52208390. Its totient is φ = 52208388.

The previous prime is 52208383. The next prime is 52208417. The reversal of 52208389 is 98380225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49702500 + 2505889 = 7050^2 + 1583^2 .

It is a cyclic number.

It is not a de Polignac number, because 52208389 - 2⁵ = 52208357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52208383) 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, 26104194 + 26104195.

It is an arithmetic number, because the mean of its divisors is an integer number (26104195).

Almost surely, 2^52208389 is an apocalyptic number.

It is an amenable number.

52208389 is a deficient number, since it is larger than the sum of its proper divisors (1).

52208389 is an equidigital number, since it uses as much as digits as its factorization.

52208389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 52208389 is about 7225.5372810608. The cubic root of 52208389 is about 373.7490500082.

The spelling of 52208389 in words is "fifty-two million, two hundred eight thousand, three hundred eighty-nine".