52509449 has 2 divisors, whose sum is σ = 52509450. Its totient is φ = 52509448.

The previous prime is 52509439. The next prime is 52509461. The reversal of 52509449 is 94490525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52461049 + 48400 = 7243^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 52509449 - 2⁴ = 52509433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52509439) 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, 26254724 + 26254725.

It is an arithmetic number, because the mean of its divisors is an integer number (26254725).

Almost surely, 2^52509449 is an apocalyptic number.

It is an amenable number.

52509449 is a deficient number, since it is larger than the sum of its proper divisors (1).

52509449 is an equidigital number, since it uses as much as digits as its factorization.

52509449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 52509449 is about 7246.3403867056. The cubic root of 52509449 is about 374.4660822531.

The spelling of 52509449 in words is "fifty-two million, five hundred nine thousand, four hundred forty-nine".