52115449 has 2 divisors, whose sum is σ = 52115450. Its totient is φ = 52115448.

The previous prime is 52115443. The next prime is 52115471. The reversal of 52115449 is 94451125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34433424 + 17682025 = 5868^2 + 4205^2 .

It is a cyclic number.

It is not a de Polignac number, because 52115449 - 2⁵ = 52115417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52115449.

It is not a weakly prime, because it can be changed into another prime (52115443) 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, 26057724 + 26057725.

It is an arithmetic number, because the mean of its divisors is an integer number (26057725).

Almost surely, 2^52115449 is an apocalyptic number.

It is an amenable number.

52115449 is a deficient number, since it is larger than the sum of its proper divisors (1).

52115449 is an equidigital number, since it uses as much as digits as its factorization.

52115449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 52115449 is about 7219.1030606302. The cubic root of 52115449 is about 373.5271388686.

The spelling of 52115449 in words is "fifty-two million, one hundred fifteen thousand, four hundred forty-nine".