1055506105550 has 48 divisors (see below), whose sum is σ = 2182461896832. Its totient is φ = 377153539200.

The previous prime is 1055506105529. The next prime is 1055506105583. The reversal of 1055506105550 is 555016055501.

It is a happy number.

It is a super-2 number, since 2×1055506105550² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26171069 + ... + 26211368.

It is an arithmetic number, because the mean of its divisors is an integer number (45467956184).

Almost surely, 2^{1055506105550} is an apocalyptic number.

1055506105550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055506105550 is an abundant number, since it is smaller than the sum of its proper divisors (1126955791282).

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

1055506105550 is a wasteful number, since it uses less digits than its factorization.

1055506105550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52382493 (or 52382488 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 1055506105550 in words is "one trillion, fifty-five billion, five hundred six million, one hundred five thousand, five hundred fifty".