505445305 has 8 divisors (see below), whose sum is σ = 606822912. Its totient is φ = 404163888.

The previous prime is 505445299. The next prime is 505445323. The reversal of 505445305 is 503544505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505445305 - 2⁵ = 505445273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11929 + ... + 33958.

It is an arithmetic number, because the mean of its divisors is an integer number (75852864).

Almost surely, 2^505445305 is an apocalyptic number.

It is an amenable number.

505445305 is a deficient number, since it is larger than the sum of its proper divisors (101377607).

505445305 is a wasteful number, since it uses less digits than its factorization.

505445305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48095.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 505445305 is about 22482.1107772380. The cubic root of 505445305 is about 796.5714234238.

The spelling of 505445305 in words is "five hundred five million, four hundred forty-five thousand, three hundred five".