1055505055550 has 24 divisors (see below), whose sum is σ = 2141715713832. Its totient is φ = 383820020000.

The previous prime is 1055505055547. The next prime is 1055505055603. The reversal of 1055505055550 is 555505055501.

It is a super-2 number, since 2×1055505055550² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1055505055498 and 1055505055507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 959549501 + ... + 959550600.

It is an arithmetic number, because the mean of its divisors is an integer number (89238154743).

Almost surely, 2^{1055505055550} is an apocalyptic number.

1055505055550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055505055550 is an abundant number, since it is smaller than the sum of its proper divisors (1086210658282).

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

1055505055550 is a wasteful number, since it uses less digits than its factorization.

1055505055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919100124 (or 1919100119 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 1055505055550 in words is "one trillion, fifty-five billion, five hundred five million, fifty-five thousand, five hundred fifty".