1056635512573 has 2 divisors, whose sum is σ = 1056635512574. Its totient is φ = 1056635512572.

The previous prime is 1056635512531. The next prime is 1056635512607. The reversal of 1056635512573 is 3752155366501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 916743056089 + 139892456484 = 957467^2 + 374022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056635512573 - 2⁹ = 1056635512061 is a prime.

It is a super-2 number, since 2×1056635512573² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056635510573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528317756286 + 528317756287.

It is an arithmetic number, because the mean of its divisors is an integer number (528317756287).

Almost surely, 2^{1056635512573} is an apocalyptic number.

It is an amenable number.

1056635512573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056635512573 is an equidigital number, since it uses as much as digits as its factorization.

1056635512573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 49.

The spelling of 1056635512573 in words is "one trillion, fifty-six billion, six hundred thirty-five million, five hundred twelve thousand, five hundred seventy-three".