505105606100 has 18 divisors (see below), whose sum is σ = 1096079165454. Its totient is φ = 202042242400.

The previous prime is 505105606091. The next prime is 505105606123. The reversal of 505105606100 is 1606501505.

It can be written as a sum of positive squares in 3 ways, for example, as 54010689604 + 451094916496 = 232402^2 + 671636^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2525527931 + ... + 2525528130.

Almost surely, 2^505105606100 is an apocalyptic number.

505105606100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

505105606100 is an abundant number, since it is smaller than the sum of its proper divisors (590973559354).

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

505105606100 is a wasteful number, since it uses less digits than its factorization.

505105606100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051056075 (or 5051056068 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 505105606100 in words is "five hundred five billion, one hundred five million, six hundred six thousand, one hundred".