505429 has 2 divisors, whose sum is σ = 505430.
Its totient is φ = 505428.
The previous prime is 505411. The next prime is 505447. The reversal of 505429 is 924505.
It is a balanced prime because it is at equal distance from previous prime (505411) and next prime (505447).
It can be written as a sum of positive squares in only one way, i.e., 487204 + 18225 = 698^2 + 135^2
It is a cyclic number.
It is not a de Polignac number, because 505429 - 27 = 505301 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (505409) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252714 + 252715.
It is an arithmetic number, because the mean of its divisors is an integer number (252715).
2505429 is an apocalyptic number.
It is an amenable number.
505429 is a deficient number, since it is larger than the sum of its proper divisors (1).
505429 is an equidigital number, since it uses as much as digits as its factorization.
505429 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1800, while the sum is 25.
The square root of 505429 is about 710.9352994471.
The cubic root of 505429 is about 79.6562857883.
The spelling of 505429 in words is "five hundred five thousand, four hundred twenty-nine".