2056611389 has 24 divisors (see below), whose sum is σ = 2433159000. Its totient is φ = 1733020800.

The previous prime is 2056611343. The next prime is 2056611419. The reversal of 2056611389 is 9831166502.

It can be written as a sum of positive squares in 4 ways, for example, as 530380900 + 1526230489 = 23030^2 + 39067^2 .

It is not a de Polignac number, because 2056611389 - 2⁸ = 2056611133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056611989) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736007 + ... + 738795.

It is an arithmetic number, because the mean of its divisors is an integer number (101381625).

Almost surely, 2^2056611389 is an apocalyptic number.

It is an amenable number.

2056611389 is a deficient number, since it is larger than the sum of its proper divisors (376547611).

2056611389 is a wasteful number, since it uses less digits than its factorization.

2056611389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053 (or 3046 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 2056611389 is about 45349.8774970782. The cubic root of 2056611389 is about 1271.6982651670.

The spelling of 2056611389 in words is "two billion, fifty-six million, six hundred eleven thousand, three hundred eighty-nine".