505404521608 has 48 divisors (see below), whose sum is σ = 1112651568720. Its totient is φ = 214577602848.

The previous prime is 505404521569. The next prime is 505404521617. The reversal of 505404521608 is 806125404505.

It is a super-2 number, since 2×505404521608² (a number of 24 digits) contains 22 as substring.

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, 5982810 + ... + 6066697.

It is an arithmetic number, because the mean of its divisors is an integer number (23180241015).

Almost surely, 2^505404521608 is an apocalyptic number.

It is an amenable number.

505404521608 is an abundant number, since it is smaller than the sum of its proper divisors (607247047112).

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

505404521608 is a wasteful number, since it uses less digits than its factorization.

505404521608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12049634 (or 12049623 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 505404521608 in words is "five hundred five billion, four hundred four million, five hundred twenty-one thousand, six hundred eight".