505509022008 has 96 divisors (see below), whose sum is σ = 1449931635360. Its totient is φ = 158557132800.

The previous prime is 505509022001. The next prime is 505509022009. The reversal of 505509022008 is 800220905505.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505509022001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6018316 + ... + 6101732.

It is an arithmetic number, because the mean of its divisors is an integer number (15103454535).

Almost surely, 2^505509022008 is an apocalyptic number.

It is an amenable number.

505509022008 is an abundant number, since it is smaller than the sum of its proper divisors (944422613352).

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

505509022008 is a wasteful number, since it uses less digits than its factorization.

505509022008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88397 (or 88390 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 505509022008 in words is "five hundred five billion, five hundred nine million, twenty-two thousand, eight".