1050605555501 has 4 divisors (see below), whose sum is σ = 1052622073404. Its totient is φ = 1048589037600.

The previous prime is 1050605555479. The next prime is 1050605555509. The reversal of 1050605555501 is 1055555060501.

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 340460580100 + 710144975401 = 583490^2 + 842701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1050605555501 - 2¹⁴ = 1050605539117 is a prime.

It is a super-2 number, since 2×1050605555501² (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 (1050605555509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1008258170 + ... + 1008259211.

It is an arithmetic number, because the mean of its divisors is an integer number (263155518351).

Almost surely, 2^{1050605555501} is an apocalyptic number.

It is an amenable number.

1050605555501 is a deficient number, since it is larger than the sum of its proper divisors (2016517903).

1050605555501 is an equidigital number, since it uses as much as digits as its factorization.

1050605555501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016517902.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 1050605555501 in words is "one trillion, fifty billion, six hundred five million, five hundred fifty-five thousand, five hundred one".