505500505548 has 12 divisors (see below), whose sum is σ = 1179501179640. Its totient is φ = 168500168512.

The previous prime is 505500505519. The next prime is 505500505621. The reversal of 505500505548 is 845505005505.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×505500505548² (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 3 ways as a sum of consecutive naturals, for example, 21062521053 + ... + 21062521076.

It is an arithmetic number, because the mean of its divisors is an integer number (98291764970).

Almost surely, 2^505500505548 is an apocalyptic number.

It is an amenable number.

505500505548 is an abundant number, since it is smaller than the sum of its proper divisors (674000674092).

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

505500505548 is a wasteful number, since it uses less digits than its factorization.

505500505548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42125042136 (or 42125042134 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 42.

The spelling of 505500505548 in words is "five hundred five billion, five hundred million, five hundred five thousand, five hundred forty-eight".