505494049 has 2 divisors, whose sum is σ = 505494050. Its totient is φ = 505494048.

The previous prime is 505494047. The next prime is 505494053. The reversal of 505494049 is 940494505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503553600 + 1940449 = 22440^2 + 1393^2 .

It is a cyclic number.

It is not a de Polignac number, because 505494049 - 2¹ = 505494047 is a prime.

Together with 505494047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (505494047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252747024 + 252747025.

It is an arithmetic number, because the mean of its divisors is an integer number (252747025).

Almost surely, 2^505494049 is an apocalyptic number.

It is an amenable number.

505494049 is a deficient number, since it is larger than the sum of its proper divisors (1).

505494049 is an equidigital number, since it uses as much as digits as its factorization.

505494049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 505494049 is about 22483.1948130153. The cubic root of 505494049 is about 796.5970291152.

The spelling of 505494049 in words is "five hundred five million, four hundred ninety-four thousand, forty-nine".