505345 has 8 divisors (see below), whose sum is σ = 610560. Its totient is φ = 401520.

The previous prime is 505339. The next prime is 505357. The reversal of 505345 is 543505.

It is a happy number.

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

It is not a de Polignac number, because 505345 - 2⁵ = 505313 is a prime.

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, 816 + ... + 1294.

It is an arithmetic number, because the mean of its divisors is an integer number (76320).

2⁵⁰⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

505345 is a deficient number, since it is larger than the sum of its proper divisors (105215).

505345 is a wasteful number, since it uses less digits than its factorization.

505345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695.

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 505345 is about 710.8762198864. The cubic root of 505345 is about 79.6518727064.

The spelling of 505345 in words is "five hundred five thousand, three hundred forty-five".