505854641 has 2 divisors, whose sum is σ = 505854642. Its totient is φ = 505854640.

The previous prime is 505854619. The next prime is 505854647. The reversal of 505854641 is 146458505.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361950625 + 143904016 = 19025^2 + 11996^2 .

It is a cyclic number.

It is not a de Polignac number, because 505854641 - 2¹⁴ = 505838257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505854595 and 505854604.

It is not a weakly prime, because it can be changed into another prime (505854647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252927320 + 252927321.

It is an arithmetic number, because the mean of its divisors is an integer number (252927321).

Almost surely, 2^505854641 is an apocalyptic number.

It is an amenable number.

505854641 is a deficient number, since it is larger than the sum of its proper divisors (1).

505854641 is an equidigital number, since it uses as much as digits as its factorization.

505854641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96000, while the sum is 38.

The square root of 505854641 is about 22491.2125284521. The cubic root of 505854641 is about 796.7864004451.

The spelling of 505854641 in words is "five hundred five million, eight hundred fifty-four thousand, six hundred forty-one".