1055123443553 has 8 divisors (see below), whose sum is σ = 1077960693888. Its totient is φ = 1032394684464.

The previous prime is 1055123443537. The next prime is 1055123443663. The reversal of 1055123443553 is 3553443215501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1055123443553 - 2⁴ = 1055123443537 is a prime.

It is a super-2 number, since 2×1055123443553² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

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 1055123443553.

It is not an unprimeable number, because it can be changed into a prime (1055123442553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27103151 + ... + 27142052.

It is an arithmetic number, because the mean of its divisors is an integer number (134745086736).

Almost surely, 2^{1055123443553} is an apocalyptic number.

It is an amenable number.

1055123443553 is a deficient number, since it is larger than the sum of its proper divisors (22837250335).

1055123443553 is an equidigital number, since it uses as much as digits as its factorization.

1055123443553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54245623.

The product of its (nonzero) digits is 540000, while the sum is 41.

The spelling of 1055123443553 in words is "one trillion, fifty-five billion, one hundred twenty-three million, four hundred forty-three thousand, five hundred fifty-three".