550555566504 has 32 divisors (see below), whose sum is σ = 1420788560640. Its totient is φ = 177598569600.

The previous prime is 550555566347. The next prime is 550555566511. The reversal of 550555566504 is 405665555055.

It is a happy number.

It is a super-2 number, since 2×550555566504² (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 7 ways as a sum of consecutive naturals, for example, 369996277 + ... + 369997764.

It is an arithmetic number, because the mean of its divisors is an integer number (44399642520).

Almost surely, 2^550555566504 is an apocalyptic number.

It is an amenable number.

550555566504 is an abundant number, since it is smaller than the sum of its proper divisors (870232994136).

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

550555566504 is a wasteful number, since it uses less digits than its factorization.

550555566504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739994081 (or 739994077 counting only the distinct ones).

The product of its (nonzero) digits is 11250000, while the sum is 51.

The spelling of 550555566504 in words is "five hundred fifty billion, five hundred fifty-five million, five hundred sixty-six thousand, five hundred four".