55505055555546 has 16 divisors (see below), whose sum is σ = 111084966227424. Its totient is φ = 18489209332464.

The previous prime is 55505055555517. The next prime is 55505055555559. The reversal of 55505055555546 is 64555555050555.

It is a happy number.

It is a super-2 number, since 2×55505055555546² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55505055555546.

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, 3118953541 + ... + 3118971336.

It is an arithmetic number, because the mean of its divisors is an integer number (6942810389214).

Almost surely, 2^{55505055555546} is an apocalyptic number.

55505055555546 is an abundant number, since it is smaller than the sum of its proper divisors (55579910671878).

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

55505055555546 is a wasteful number, since it uses less digits than its factorization.

55505055555546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6237926365.

The product of its (nonzero) digits is 234375000, while the sum is 60.

The spelling of 55505055555546 in words is "fifty-five trillion, five hundred five billion, fifty-five million, five hundred fifty-five thousand, five hundred forty-six".