505546 has 8 divisors (see below), whose sum is σ = 802980. Its totient is φ = 237888.

The previous prime is 505537. The next prime is 505559. The reversal of 505546 is 645505.

It can be written as a sum of positive squares in 2 ways, for example, as 505521 + 25 = 711^2 + 5^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 505546.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7401 + ... + 7468.

2⁵⁰⁵⁵⁴⁶ is an apocalyptic number.

505546 is a deficient number, since it is larger than the sum of its proper divisors (297434).

505546 is a wasteful number, since it uses less digits than its factorization.

505546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14888.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 505546 is about 711.0175806547. The cubic root of 505546 is about 79.6624317662.

Subtracting from 505546 its sum of digits (25), we obtain a square (505521 = 711²).

The spelling of 505546 in words is "five hundred five thousand, five hundred forty-six".