2055564641 has 16 divisors (see below), whose sum is σ = 2252803728. Its totient is φ = 1863993600.

The previous prime is 2055564611. The next prime is 2055564653. The reversal of 2055564641 is 1464655502.

It can be written as a sum of positive squares in 8 ways, for example, as 399400225 + 1656164416 = 19985^2 + 40696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2055564641 - 2¹⁸ = 2055302497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2055564595 and 2055564604.

It is not an unprimeable number, because it can be changed into a prime (2055564611) 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, 1094195 + ... + 1096071.

It is an arithmetic number, because the mean of its divisors is an integer number (140800233).

Almost surely, 2^2055564641 is an apocalyptic number.

It is an amenable number.

2055564641 is a deficient number, since it is larger than the sum of its proper divisors (197239087).

2055564641 is a wasteful number, since it uses less digits than its factorization.

2055564641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332.

The product of its (nonzero) digits is 144000, while the sum is 38.

The square root of 2055564641 is about 45338.3352252815. The cubic root of 2055564641 is about 1271.4824775979.

The spelling of 2055564641 in words is "two billion, fifty-five million, five hundred sixty-four thousand, six hundred forty-one".