1055551000550 has 24 divisors (see below), whose sum is σ = 1963359380856. Its totient is φ = 422212976640.

The previous prime is 1055551000513. The next prime is 1055551000579. The reversal of 1055551000550 is 550001555501.

It is a super-2 number, since 2×1055551000550² (a number of 25 digits) contains 22 as substring.

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, 3355622 + ... + 3656678.

It is an arithmetic number, because the mean of its divisors is an integer number (81806640869).

Almost surely, 2^{1055551000550} is an apocalyptic number.

1055551000550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055551000550 is a deficient number, since it is larger than the sum of its proper divisors (907808380306).

1055551000550 is a wasteful number, since it uses less digits than its factorization.

1055551000550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371192 (or 371187 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 1055551000550 in words is "one trillion, fifty-five billion, five hundred fifty-one million, five hundred fifty", and thus it is an aban number.