1057571500257 has 24 divisors (see below), whose sum is σ = 1532846773224. Its totient is φ = 702631736064.

The previous prime is 1057571500229. The next prime is 1057571500261. The reversal of 1057571500257 is 7520051757501.

1057571500257 is a `hidden beast` number, since 1 + 0 + 5 + 7 + 571 + 50 + 0 + 25 + 7 = 666.

1057571500257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 38039041296 + 1019532458961 = 195036^2 + 1009719^2 .

It is not a de Polignac number, because 1057571500257 - 2¹⁰ = 1057571499233 is a prime.

It is a super-2 number, since 2×1057571500257² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1057571500057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2900893 + ... + 3245045.

It is an arithmetic number, because the mean of its divisors is an integer number (63868615551).

Almost surely, 2^{1057571500257} is an apocalyptic number.

It is an amenable number.

1057571500257 is a deficient number, since it is larger than the sum of its proper divisors (475275272967).

1057571500257 is a wasteful number, since it uses less digits than its factorization.

1057571500257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345329 (or 345326 counting only the distinct ones).

The product of its (nonzero) digits is 428750, while the sum is 45.

The spelling of 1057571500257 in words is "one trillion, fifty-seven billion, five hundred seventy-one million, five hundred thousand, two hundred fifty-seven".