52121339 has 2 divisors, whose sum is σ = 52121340. Its totient is φ = 52121338.

The previous prime is 52121327. The next prime is 52121347. The reversal of 52121339 is 93312125.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52121339 is a prime.

It is a Chen prime.

It is equal to p_3120668 and since 52121339 and 3120668 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (52121309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26060669 + 26060670.

It is an arithmetic number, because the mean of its divisors is an integer number (26060670).

Almost surely, 2^52121339 is an apocalyptic number.

52121339 is a deficient number, since it is larger than the sum of its proper divisors (1).

52121339 is an equidigital number, since it uses as much as digits as its factorization.

52121339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 26.

The square root of 52121339 is about 7219.5109945203. The cubic root of 52121339 is about 373.5412101406.

The spelling of 52121339 in words is "fifty-two million, one hundred twenty-one thousand, three hundred thirty-nine".