1057055120571 has 4 divisors (see below), whose sum is σ = 1409406827432. Its totient is φ = 704703413712.

The previous prime is 1057055120557. The next prime is 1057055120599. The reversal of 1057055120571 is 1750215507501.

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

It is not a de Polignac number, because 1057055120571 - 2¹¹ = 1057055118523 is a prime.

It is a super-2 number, since 2×1057055120571² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1057055120521) 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, 176175853426 + ... + 176175853431.

It is an arithmetic number, because the mean of its divisors is an integer number (352351706858).

Almost surely, 2^{1057055120571} is an apocalyptic number.

1057055120571 is a deficient number, since it is larger than the sum of its proper divisors (352351706861).

1057055120571 is an equidigital number, since it uses as much as digits as its factorization.

1057055120571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352351706860.

The product of its (nonzero) digits is 61250, while the sum is 39.

The spelling of 1057055120571 in words is "one trillion, fifty-seven billion, fifty-five million, one hundred twenty thousand, five hundred seventy-one".