52039909 has 2 divisors, whose sum is σ = 52039910. Its totient is φ = 52039908.

The previous prime is 52039903. The next prime is 52039927. The reversal of 52039909 is 90993025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33524100 + 18515809 = 5790^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 52039909 - 2⁷ = 52039781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52039903) 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, 26019954 + 26019955.

It is an arithmetic number, because the mean of its divisors is an integer number (26019955).

Almost surely, 2^52039909 is an apocalyptic number.

It is an amenable number.

52039909 is a deficient number, since it is larger than the sum of its proper divisors (1).

52039909 is an equidigital number, since it uses as much as digits as its factorization.

52039909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 52039909 is about 7213.8692114565. The cubic root of 52039909 is about 373.3465789483.

The spelling of 52039909 in words is "fifty-two million, thirty-nine thousand, nine hundred nine".