505788 has 24 divisors (see below), whose sum is σ = 1193808. Its totient is φ = 166656.

The previous prime is 505781. The next prime is 505811. The reversal of 505788 is 887505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1170 + ... + 1542.

It is an arithmetic number, because the mean of its divisors is an integer number (49742).

2⁵⁰⁵⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

505788 is an abundant number, since it is smaller than the sum of its proper divisors (688020).

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

505788 is a wasteful number, since it uses less digits than its factorization.

505788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

The square root of 505788 is about 711.1877389269. The cubic root of 505788 is about 79.6751409514.

The spelling of 505788 in words is "five hundred five thousand, seven hundred eighty-eight".