505502788 has 48 divisors (see below), whose sum is σ = 1026393984. Its totient is φ = 213373440.

The previous prime is 505502783. The next prime is 505502801. The reversal of 505502788 is 887205505.

It is a self number, because there is not a number n which added to its sum of digits gives 505502788.

It is not an unprimeable number, because it can be changed into a prime (505502783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622903 + ... + 623713.

It is an arithmetic number, because the mean of its divisors is an integer number (21383208).

Almost surely, 2^505502788 is an apocalyptic number.

It is an amenable number.

505502788 is an abundant number, since it is smaller than the sum of its proper divisors (520891196).

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

505502788 is a wasteful number, since it uses less digits than its factorization.

505502788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1130 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 505502788 is about 22483.3891573312. The cubic root of 505502788 is about 796.6016196218.

The spelling of 505502788 in words is "five hundred five million, five hundred two thousand, seven hundred eighty-eight".