505900 has 18 divisors (see below), whose sum is σ = 1098020. Its totient is φ = 202320.

The previous prime is 505877. The next prime is 505907. The reversal of 505900 is 9505.

It is not an unprimeable number, because it can be changed into a prime (505907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2430 + ... + 2629.

2⁵⁰⁵⁹⁰⁰ is an apocalyptic number.

505900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505900 is an abundant number, since it is smaller than the sum of its proper divisors (592120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505900 is a wasteful number, since it uses less digits than its factorization.

505900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 505900 is about 711.2664760833. The cubic root of 505900 is about 79.6810215161.

The spelling of 505900 in words is "five hundred five thousand, nine hundred".