2055228649 has 4 divisors (see below), whose sum is σ = 2057163136. Its totient is φ = 2053294164.

The previous prime is 2055228619. The next prime is 2055228671. The reversal of 2055228649 is 9468225502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2055228649 - 2¹¹ = 2055226601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2055228619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965649 + ... + 967774.

It is an arithmetic number, because the mean of its divisors is an integer number (514290784).

Almost surely, 2^2055228649 is an apocalyptic number.

It is an amenable number.

2055228649 is a deficient number, since it is larger than the sum of its proper divisors (1934487).

2055228649 is a wasteful number, since it uses less digits than its factorization.

2055228649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934486.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 2055228649 is about 45334.6296885725. The cubic root of 2055228649 is about 1271.4131971659.

The spelling of 2055228649 in words is "two billion, fifty-five million, two hundred twenty-eight thousand, six hundred forty-nine".