505430245 has 24 divisors (see below), whose sum is σ = 629865504. Its totient is φ = 389263776.

The previous prime is 505430239. The next prime is 505430273. The reversal of 505430245 is 542034505.

It is not a de Polignac number, because 505430245 - 2⁷ = 505430117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 739674 + ... + 740356.

It is an arithmetic number, because the mean of its divisors is an integer number (26244396).

Almost surely, 2^505430245 is an apocalyptic number.

It is an amenable number.

505430245 is a deficient number, since it is larger than the sum of its proper divisors (124435259).

505430245 is an equidigital number, since it uses as much as digits as its factorization.

505430245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 505430245 is about 22481.7758417790. The cubic root of 505430245 is about 796.5635119283.

The spelling of 505430245 in words is "five hundred five million, four hundred thirty thousand, two hundred forty-five".