505307849 has 2 divisors, whose sum is σ = 505307850. Its totient is φ = 505307848.

The previous prime is 505307809. The next prime is 505307899. The reversal of 505307849 is 948703505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 359671225 + 145636624 = 18965^2 + 12068^2 .

It is a cyclic number.

It is not a de Polignac number, because 505307849 - 2¹² = 505303753 is a prime.

It is a super-2 number, since 2×505307849² = 510672044522013602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505307809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252653924 + 252653925.

It is an arithmetic number, because the mean of its divisors is an integer number (252653925).

Almost surely, 2^505307849 is an apocalyptic number.

It is an amenable number.

505307849 is a deficient number, since it is larger than the sum of its proper divisors (1).

505307849 is an equidigital number, since it uses as much as digits as its factorization.

505307849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 505307849 is about 22479.0535610377. The cubic root of 505307849 is about 796.4992075991.

The spelling of 505307849 in words is "five hundred five million, three hundred seven thousand, eight hundred forty-nine".