2055774465 has 32 divisors (see below), whose sum is σ = 3716668800. Its totient is φ = 1077825600.

The previous prime is 2055774403. The next prime is 2055774571. The reversal of 2055774465 is 5644775502.

2055774465 is a `hidden beast` number, since 20 + 557 + 74 + 4 + 6 + 5 = 666.

It is not a de Polignac number, because 2055774465 - 2⁸ = 2055774209 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2055774465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121086 + ... + 137015.

It is an arithmetic number, because the mean of its divisors is an integer number (116145900).

Almost surely, 2^2055774465 is an apocalyptic number.

It is an amenable number.

2055774465 is a deficient number, since it is larger than the sum of its proper divisors (1660894335).

2055774465 is a wasteful number, since it uses less digits than its factorization.

2055774465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258174 (or 258168 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 45.

The square root of 2055774465 is about 45340.6491462132. The cubic root of 2055774465 is about 1271.5257387790.

The spelling of 2055774465 in words is "two billion, fifty-five million, seven hundred seventy-four thousand, four hundred sixty-five".