503965849 has 2 divisors, whose sum is σ = 503965850. Its totient is φ = 503965848.

The previous prime is 503965841. The next prime is 503965873. The reversal of 503965849 is 948569305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411805849 + 92160000 = 20293^2 + 9600^2 .

It is a cyclic number.

It is not a de Polignac number, because 503965849 - 2³ = 503965841 is a prime.

It is not a weakly prime, because it can be changed into another prime (503965841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251982924 + 251982925.

It is an arithmetic number, because the mean of its divisors is an integer number (251982925).

Almost surely, 2^503965849 is an apocalyptic number.

It is an amenable number.

503965849 is a deficient number, since it is larger than the sum of its proper divisors (1).

503965849 is an equidigital number, since it uses as much as digits as its factorization.

503965849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The square root of 503965849 is about 22449.1837045359. The cubic root of 503965849 is about 795.7934664666.

The spelling of 503965849 in words is "five hundred three million, nine hundred sixty-five thousand, eight hundred forty-nine".