504981853 has 2 divisors, whose sum is σ = 504981854. Its totient is φ = 504981852.

The previous prime is 504981839. The next prime is 504981887. The reversal of 504981853 is 358189405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323352324 + 181629529 = 17982^2 + 13477^2 .

It is a cyclic number.

It is not a de Polignac number, because 504981853 - 2⁹ = 504981341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (504981053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252490926 + 252490927.

It is an arithmetic number, because the mean of its divisors is an integer number (252490927).

Almost surely, 2^504981853 is an apocalyptic number.

It is an amenable number.

504981853 is a deficient number, since it is larger than the sum of its proper divisors (1).

504981853 is an equidigital number, since it uses as much as digits as its factorization.

504981853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 504981853 is about 22471.8012851663. The cubic root of 504981853 is about 796.3278853615.

The spelling of 504981853 in words is "five hundred four million, nine hundred eighty-one thousand, eight hundred fifty-three".