505303429 has 2 divisors, whose sum is σ = 505303430. Its totient is φ = 505303428.

The previous prime is 505303369. The next prime is 505303451. The reversal of 505303429 is 924303505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 497379204 + 7924225 = 22302^2 + 2815^2 .

It is a cyclic number.

It is not a de Polignac number, because 505303429 - 2⁷ = 505303301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505303429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505303129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252651714 + 252651715.

It is an arithmetic number, because the mean of its divisors is an integer number (252651715).

Almost surely, 2^505303429 is an apocalyptic number.

It is an amenable number.

505303429 is a deficient number, since it is larger than the sum of its proper divisors (1).

505303429 is an equidigital number, since it uses as much as digits as its factorization.

505303429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 505303429 is about 22478.9552470750. The cubic root of 505303429 is about 796.4968852282.

The spelling of 505303429 in words is "five hundred five million, three hundred three thousand, four hundred twenty-nine".