1056276689 has 16 divisors (see below), whose sum is σ = 1159441920. Its totient is φ = 956404800.

The previous prime is 1056276667. The next prime is 1056276721. The reversal of 1056276689 is 9866726501.

It is not a de Polignac number, because 1056276689 - 2¹⁶ = 1056211153 is a prime.

It is a super-2 number, since 2×1056276689² = 2231440887449605442, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1056276619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157964 + ... + 164514.

It is an arithmetic number, because the mean of its divisors is an integer number (72465120).

Almost surely, 2^1056276689 is an apocalyptic number.

It is an amenable number.

1056276689 is a deficient number, since it is larger than the sum of its proper divisors (103165231).

1056276689 is a wasteful number, since it uses less digits than its factorization.

1056276689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6800.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1056276689 is about 32500.4105974063. The cubic root of 1056276689 is about 1018.4176056672.

The spelling of 1056276689 in words is "one billion, fifty-six million, two hundred seventy-six thousand, six hundred eighty-nine".