505560100 has 18 divisors (see below), whose sum is σ = 1097065634. Its totient is φ = 202224000.

The previous prime is 505560089. The next prime is 505560101. The reversal of 505560100 is 1065505.

It can be written as a sum of positive squares in 3 ways, for example, as 115734564 + 389825536 = 10758^2 + 19744^2 .

It is not an unprimeable number, because it can be changed into a prime (505560101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2527701 + ... + 2527900.

Almost surely, 2^505560100 is an apocalyptic number.

505560100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505560100 is an abundant number, since it is smaller than the sum of its proper divisors (591505534).

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

505560100 is a wasteful number, since it uses less digits than its factorization.

505560100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055615 (or 5055608 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 505560100 is about 22484.6636621498. The cubic root of 505560100 is about 796.6317237134.

The spelling of 505560100 in words is "five hundred five million, five hundred sixty thousand, one hundred".