2356055221 has 4 divisors (see below), whose sum is σ = 2537290252. Its totient is φ = 2174820192.

The previous prime is 2356055173. The next prime is 2356055227. The reversal of 2356055221 is 1225506532.

It is a happy number.

2356055221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 756855121 + 1599200100 = 27511^2 + 39990^2 .

It is a cyclic number.

It is not a de Polignac number, because 2356055221 - 2²⁷ = 2221837493 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 (2356055227) 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, 90617496 + ... + 90617521.

It is an arithmetic number, because the mean of its divisors is an integer number (634322563).

Almost surely, 2^2356055221 is an apocalyptic number.

It is an amenable number.

2356055221 is a deficient number, since it is larger than the sum of its proper divisors (181235031).

2356055221 is a wasteful number, since it uses less digits than its factorization.

2356055221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181235030.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 2356055221 is about 48539.2132301297. The cubic root of 2356055221 is about 1330.6438213682.

The spelling of 2356055221 in words is "two billion, three hundred fifty-six million, fifty-five thousand, two hundred twenty-one".