1055775028069 has 4 divisors (see below), whose sum is σ = 1061245365196. Its totient is φ = 1050304690944.

The previous prime is 1055775028067. The next prime is 1055775028127. The reversal of 1055775028069 is 9608205775501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 721332571969 + 334442456100 = 849313^2 + 578310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055775028069 - 2¹ = 1055775028067 is a prime.

It is a super-2 number, since 2×1055775028069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055775028067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735168274 + ... + 2735168659.

It is an arithmetic number, because the mean of its divisors is an integer number (265311341299).

Almost surely, 2^{1055775028069} is an apocalyptic number.

It is an amenable number.

1055775028069 is a deficient number, since it is larger than the sum of its proper divisors (5470337127).

1055775028069 is an equidigital number, since it uses as much as digits as its factorization.

1055775028069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470337126.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 1055775028069 in words is "one trillion, fifty-five billion, seven hundred seventy-five million, twenty-eight thousand, sixty-nine".