53081849 has 2 divisors, whose sum is σ = 53081850. Its totient is φ = 53081848.

The previous prime is 53081843. The next prime is 53081867. The reversal of 53081849 is 94818035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50623225 + 2458624 = 7115^2 + 1568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53081849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53081843) 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, 26540924 + 26540925.

It is an arithmetic number, because the mean of its divisors is an integer number (26540925).

Almost surely, 2^53081849 is an apocalyptic number.

It is an amenable number.

53081849 is a deficient number, since it is larger than the sum of its proper divisors (1).

53081849 is an equidigital number, since it uses as much as digits as its factorization.

53081849 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 38.

The square root of 53081849 is about 7285.7291330381. The cubic root of 53081849 is about 375.8218396373.

The spelling of 53081849 in words is "fifty-three million, eighty-one thousand, eight hundred forty-nine".