1055011105509 has 8 divisors (see below), whose sum is σ = 1407165047520. Its totient is φ = 703098950256.

The previous prime is 1055011105507. The next prime is 1055011105523. The reversal of 1055011105509 is 9055011105501.

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

It is not a de Polignac number, because 1055011105509 - 2¹ = 1055011105507 is a prime.

It is a super-2 number, since 2×1055011105509² (a number of 25 digits) contains 22 as substring.

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 1055011105509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055011105507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60436507 + ... + 60453960.

It is an arithmetic number, because the mean of its divisors is an integer number (175895630940).

Almost surely, 2^{1055011105509} is an apocalyptic number.

It is an amenable number.

1055011105509 is a deficient number, since it is larger than the sum of its proper divisors (352153942011).

1055011105509 is a wasteful number, since it uses less digits than its factorization.

1055011105509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120893379.

The product of its (nonzero) digits is 5625, while the sum is 33.

The spelling of 1055011105509 in words is "one trillion, fifty-five billion, eleven million, one hundred five thousand, five hundred nine".