505550105490 has 16 divisors (see below), whose sum is σ = 1213320253248. Its totient is φ = 134813361456.

The previous prime is 505550105447. The next prime is 505550105513. The reversal of 505550105490 is 94501055505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8425835062 + ... + 8425835121.

It is an arithmetic number, because the mean of its divisors is an integer number (75832515828).

Almost surely, 2^505550105490 is an apocalyptic number.

505550105490 is an abundant number, since it is smaller than the sum of its proper divisors (707770147758).

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

505550105490 is a wasteful number, since it uses less digits than its factorization.

505550105490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851670193.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 505550105490 in words is "five hundred five billion, five hundred fifty million, one hundred five thousand, four hundred ninety".