505022549 has 2 divisors, whose sum is σ = 505022550. Its totient is φ = 505022548.

The previous prime is 505022533. The next prime is 505022561. The reversal of 505022549 is 945220505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378302500 + 126720049 = 19450^2 + 11257^2 .

It is a cyclic number.

It is not a de Polignac number, because 505022549 - 2⁴ = 505022533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505022149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252511274 + 252511275.

It is an arithmetic number, because the mean of its divisors is an integer number (252511275).

Almost surely, 2^505022549 is an apocalyptic number.

It is an amenable number.

505022549 is a deficient number, since it is larger than the sum of its proper divisors (1).

505022549 is an equidigital number, since it uses as much as digits as its factorization.

505022549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 505022549 is about 22472.7067573090. The cubic root of 505022549 is about 796.3492765521.

The spelling of 505022549 in words is "five hundred five million, twenty-two thousand, five hundred forty-nine".