1055986075821 has 16 divisors (see below), whose sum is σ = 1409049331200. Its totient is φ = 703456966320.

The previous prime is 1055986075819. The next prime is 1055986075883. The reversal of 1055986075821 is 1285706895501.

It is not a de Polignac number, because 1055986075821 - 2¹ = 1055986075819 is a prime.

It is a super-2 number, since 2×1055986075821² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055986075021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24303606 + ... + 24347016.

It is an arithmetic number, because the mean of its divisors is an integer number (88065583200).

Almost surely, 2^{1055986075821} is an apocalyptic number.

It is an amenable number.

1055986075821 is a deficient number, since it is larger than the sum of its proper divisors (353063255379).

1055986075821 is a wasteful number, since it uses less digits than its factorization.

1055986075821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49376.

The product of its (nonzero) digits is 6048000, while the sum is 57.

The spelling of 1055986075821 in words is "one trillion, fifty-five billion, nine hundred eighty-six million, seventy-five thousand, eight hundred twenty-one".