500555605081 has 8 divisors (see below), whose sum is σ = 579900036224. Its totient is φ = 423170295840.

The previous prime is 500555605063. The next prime is 500555605133. The reversal of 500555605081 is 180506555005.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 500555605081 - 2¹³ = 500555596889 is a prime.

It is a super-2 number, since 2×500555605081² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (500555605181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489779925 + ... + 489780946.

It is an arithmetic number, because the mean of its divisors is an integer number (72487504528).

Almost surely, 2^500555605081 is an apocalyptic number.

It is an amenable number.

500555605081 is a deficient number, since it is larger than the sum of its proper divisors (79344431143).

500555605081 is an equidigital number, since it uses as much as digits as its factorization.

500555605081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979560951.

The product of its (nonzero) digits is 150000, while the sum is 40.

The spelling of 500555605081 in words is "five hundred billion, five hundred fifty-five million, six hundred five thousand, eighty-one".