1055605105550 has 48 divisors (see below), whose sum is σ = 2067804400560. Its totient is φ = 399817347840.

The previous prime is 1055605105523. The next prime is 1055605105567. The reversal of 1055605105550 is 555015065501.

It is a happy number.

It is a super-2 number, since 2×1055605105550² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1614584 + ... + 2172116.

It is an arithmetic number, because the mean of its divisors is an integer number (43079258345).

Almost surely, 2^{1055605105550} is an apocalyptic number.

1055605105550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055605105550 is a deficient number, since it is larger than the sum of its proper divisors (1012199295010).

1055605105550 is a wasteful number, since it uses less digits than its factorization.

1055605105550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559557 (or 559552 counting only the distinct ones).

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

The spelling of 1055605105550 in words is "one trillion, fifty-five billion, six hundred five million, one hundred five thousand, five hundred fifty".