2055097221 has 8 divisors (see below), whose sum is σ = 2742139584. Its totient is φ = 1369059840.

The previous prime is 2055097199. The next prime is 2055097271. The reversal of 2055097221 is 1227905502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2055097221 - 2²⁶ = 1987988357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2055097271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246460 + ... + 254661.

It is an arithmetic number, because the mean of its divisors is an integer number (342767448).

Almost surely, 2^2055097221 is an apocalyptic number.

It is an amenable number.

2055097221 is a deficient number, since it is larger than the sum of its proper divisors (687042363).

2055097221 is a wasteful number, since it uses less digits than its factorization.

2055097221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502491.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 2055097221 is about 45333.1801333196. The cubic root of 2055097221 is about 1271.3860950953.

The spelling of 2055097221 in words is "two billion, fifty-five million, ninety-seven thousand, two hundred twenty-one".