505103449 has 2 divisors, whose sum is σ = 505103450. Its totient is φ = 505103448.

The previous prime is 505103399. The next prime is 505103461. The reversal of 505103449 is 944301505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503329225 + 1774224 = 22435^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 505103449 - 2⁷ = 505103321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505103449.

It is not a weakly prime, because it can be changed into another prime (505103479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252551724 + 252551725.

It is an arithmetic number, because the mean of its divisors is an integer number (252551725).

Almost surely, 2^505103449 is an apocalyptic number.

It is an amenable number.

505103449 is a deficient number, since it is larger than the sum of its proper divisors (1).

505103449 is an equidigital number, since it uses as much as digits as its factorization.

505103449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 505103449 is about 22474.5066464205. The cubic root of 505103449 is about 796.3917969087.

The spelling of 505103449 in words is "five hundred five million, one hundred three thousand, four hundred forty-nine".