1056617311 has 4 divisors (see below), whose sum is σ = 1064683224. Its totient is φ = 1048551400.

The previous prime is 1056617297. The next prime is 1056617339. The reversal of 1056617311 is 1137166501.

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

It is a cyclic number.

It is not a de Polignac number, because 1056617311 - 2⁵ = 1056617279 is a prime.

It is a super-2 number, since 2×1056617311² = 2232880283809741442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056117311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4032760 + ... + 4033021.

It is an arithmetic number, because the mean of its divisors is an integer number (266170806).

Almost surely, 2^1056617311 is an apocalyptic number.

1056617311 is a deficient number, since it is larger than the sum of its proper divisors (8065913).

1056617311 is an equidigital number, since it uses as much as digits as its factorization.

1056617311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8065912.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1056617311 is about 32505.6504472684. The cubic root of 1056617311 is about 1018.5270650427.

The spelling of 1056617311 in words is "one billion, fifty-six million, six hundred seventeen thousand, three hundred eleven".