1055505051101 has 4 divisors (see below), whose sum is σ = 1060035115932. Its totient is φ = 1050974986272.

The previous prime is 1055505051067. The next prime is 1055505051121. The reversal of 1055505051101 is 1011505055501.

It is a happy number.

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 66693579001 + 988811472100 = 258251^2 + 994390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1055505051101 is a prime.

It is a super-2 number, since 2×1055505051101² (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 (1055505051121) 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, 2265032066 + ... + 2265032531.

It is an arithmetic number, because the mean of its divisors is an integer number (265008778983).

Almost surely, 2^{1055505051101} is an apocalyptic number.

It is an amenable number.

1055505051101 is a deficient number, since it is larger than the sum of its proper divisors (4530064831).

1055505051101 is an equidigital number, since it uses as much as digits as its factorization.

1055505051101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4530064830.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 1055505051101 in words is "one trillion, fifty-five billion, five hundred five million, fifty-one thousand, one hundred one".