2056143445 has 4 divisors (see below), whose sum is σ = 2467372140. Its totient is φ = 1644914752.

The previous prime is 2056143437. The next prime is 2056143473. The reversal of 2056143445 is 5443416502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443416502 = 2 ⋅2721708251.

It can be written as a sum of positive squares in 2 ways, for example, as 1229063364 + 827080081 = 35058^2 + 28759^2 .

It is a cyclic number.

It is not a de Polignac number, because 2056143445 - 2³ = 2056143437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056143445.

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, 205614340 + ... + 205614349.

It is an arithmetic number, because the mean of its divisors is an integer number (616843035).

Almost surely, 2^2056143445 is an apocalyptic number.

It is an amenable number.

2056143445 is a deficient number, since it is larger than the sum of its proper divisors (411228695).

2056143445 is an equidigital number, since it uses as much as digits as its factorization.

2056143445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411228694.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2056143445 is about 45344.7179393587. The cubic root of 2056143445 is about 1271.6018073537.

Adding to 2056143445 its reverse (5443416502), we get a palindrome (7499559947).

The spelling of 2056143445 in words is "two billion, fifty-six million, one hundred forty-three thousand, four hundred forty-five".