1056564456263 has 4 divisors (see below), whose sum is σ = 1056568749960. Its totient is φ = 1056560162568.

The previous prime is 1056564456247. The next prime is 1056564456281. The reversal of 1056564456263 is 3626544656501.

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 1056564456263 - 2⁴ = 1056564456247 is a prime.

It is a super-2 number, since 2×1056564456263² (a number of 25 digits) 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 (1056564456293) 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, 1753745 + ... + 2277882.

It is an arithmetic number, because the mean of its divisors is an integer number (264142187490).

Almost surely, 2^{1056564456263} is an apocalyptic number.

1056564456263 is a deficient number, since it is larger than the sum of its proper divisors (4293697).

1056564456263 is an equidigital number, since it uses as much as digits as its factorization.

1056564456263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293696.

The product of its (nonzero) digits is 15552000, while the sum is 53.

The spelling of 1056564456263 in words is "one trillion, fifty-six billion, five hundred sixty-four million, four hundred fifty-six thousand, two hundred sixty-three".