505028656 has 60 divisors (see below), whose sum is σ = 1134045720. Its totient is φ = 216033280.

The previous prime is 505028627. The next prime is 505028663. The reversal of 505028656 is 656820505.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45900 + ... + 55828.

It is an arithmetic number, because the mean of its divisors is an integer number (18900762).

Almost surely, 2^505028656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505028656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567022860).

505028656 is an abundant number, since it is smaller than the sum of its proper divisors (629017064).

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

505028656 is a wasteful number, since it uses less digits than its factorization.

505028656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9982 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 505028656 is about 22472.8426328313. The cubic root of 505028656 is about 796.3524864981.

The spelling of 505028656 in words is "five hundred five million, twenty-eight thousand, six hundred fifty-six".