1056000581 has 2 divisors, whose sum is σ = 1056000582. Its totient is φ = 1056000580.

The previous prime is 1056000571. The next prime is 1056000593. The reversal of 1056000581 is 1850006501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 547092100 + 508908481 = 23390^2 + 22559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056000581 - 2¹⁴ = 1055984197 is a prime.

It is a super-2 number, since 2×1056000581² = 2230274454144675122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1056000581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1056000571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528000290 + 528000291.

It is an arithmetic number, because the mean of its divisors is an integer number (528000291).

Almost surely, 2^1056000581 is an apocalyptic number.

It is an amenable number.

1056000581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056000581 is an equidigital number, since it uses as much as digits as its factorization.

1056000581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1056000581 is about 32496.1625580621. The cubic root of 1056000581 is about 1018.3288606897.

The spelling of 1056000581 in words is "one billion, fifty-six million, five hundred eighty-one", and thus it is an aban number.