1056260005 has 4 divisors (see below), whose sum is σ = 1267512012. Its totient is φ = 845008000.

The previous prime is 1056259969. The next prime is 1056260021. The reversal of 1056260005 is 5000626501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5000626501 = 13 ⋅384663577.

It can be written as a sum of positive squares in 2 ways, for example, as 783944001 + 272316004 = 27999^2 + 16502^2 .

It is not a de Polignac number, because 1056260005 - 2⁷ = 1056259877 is a prime.

It is a super-2 number, since 2×1056260005² = 2231370396325200050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105625996 + ... + 105626005.

It is an arithmetic number, because the mean of its divisors is an integer number (316878003).

Almost surely, 2^1056260005 is an apocalyptic number.

It is an amenable number.

1056260005 is a deficient number, since it is larger than the sum of its proper divisors (211252007).

1056260005 is an equidigital number, since it uses as much as digits as its factorization.

1056260005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211252006.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1056260005 is about 32500.1539227124. The cubic root of 1056260005 is about 1018.4122436350.

Adding to 1056260005 its reverse (5000626501), we get a palindrome (6056886506).

The spelling of 1056260005 in words is "one billion, fifty-six million, two hundred sixty thousand, five".