505045481 has 2 divisors, whose sum is σ = 505045482. Its totient is φ = 505045480.

The previous prime is 505045451. The next prime is 505045511. The reversal of 505045481 is 184540505.

It is a balanced prime because it is at equal distance from previous prime (505045451) and next prime (505045511).

It can be written as a sum of positive squares in only one way, i.e., 284225881 + 220819600 = 16859^2 + 14860^2 .

It is a cyclic number.

It is not a de Polignac number, because 505045481 - 2¹⁰ = 505044457 is a prime.

It is a super-2 number, since 2×505045481² = 510141875757042722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505045451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252522740 + 252522741.

It is an arithmetic number, because the mean of its divisors is an integer number (252522741).

Almost surely, 2^505045481 is an apocalyptic number.

It is an amenable number.

505045481 is a deficient number, since it is larger than the sum of its proper divisors (1).

505045481 is an equidigital number, since it uses as much as digits as its factorization.

505045481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16000, while the sum is 32.

The square root of 505045481 is about 22473.2169704295. The cubic root of 505045481 is about 796.3613298787.

Adding to 505045481 its reverse (184540505), we get a palindrome (689585986).

The spelling of 505045481 in words is "five hundred five million, forty-five thousand, four hundred eighty-one".