1057561759 has 4 divisors (see below), whose sum is σ = 1057644504. Its totient is φ = 1057479016.

The previous prime is 1057561741. The next prime is 1057561801. The reversal of 1057561759 is 9571657501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1057561759 - 2⁵ = 1057561727 is a prime.

It is a super-6 number, since 6×1057561759⁶ (a number of 55 digits) contains 666666 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1057565759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17677 + ... + 49270.

It is an arithmetic number, because the mean of its divisors is an integer number (264411126).

Almost surely, 2^1057561759 is an apocalyptic number.

1057561759 is a deficient number, since it is larger than the sum of its proper divisors (82745).

1057561759 is an equidigital number, since it uses as much as digits as its factorization.

1057561759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82744.

The product of its (nonzero) digits is 330750, while the sum is 46.

The square root of 1057561759 is about 32520.1746459025. The cubic root of 1057561759 is about 1018.8304417944.

The spelling of 1057561759 in words is "one billion, fifty-seven million, five hundred sixty-one thousand, seven hundred fifty-nine".