1056570551 has 4 divisors (see below), whose sum is σ = 1090653504. Its totient is φ = 1022487600.

The previous prime is 1056570523. The next prime is 1056570611. The reversal of 1056570551 is 1550756501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1550756501 = 7 ⋅221536643.

It is a cyclic number.

It is not a de Polignac number, because 1056570551 - 2²⁶ = 989461687 is a prime.

It is a super-2 number, since 2×1056570551² = 2232682658480887202, 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 (1056570511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17041430 + ... + 17041491.

It is an arithmetic number, because the mean of its divisors is an integer number (272663376).

Almost surely, 2^1056570551 is an apocalyptic number.

1056570551 is a deficient number, since it is larger than the sum of its proper divisors (34082953).

1056570551 is an equidigital number, since it uses as much as digits as its factorization.

1056570551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34082952.

The product of its (nonzero) digits is 26250, while the sum is 35.

The square root of 1056570551 is about 32504.9311797456. The cubic root of 1056570551 is about 1018.5120400418.

The spelling of 1056570551 in words is "one billion, fifty-six million, five hundred seventy thousand, five hundred fifty-one".