2552028221 has 8 divisors (see below), whose sum is σ = 2635538688. Its totient is φ = 2468592000.

The previous prime is 2552028203. The next prime is 2552028223. The reversal of 2552028221 is 1228202552.

2552028221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2552028221 - 2²² = 2547833917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2552028223) 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, 56141 + ... + 90861.

It is an arithmetic number, because the mean of its divisors is an integer number (329442336).

Almost surely, 2^2552028221 is an apocalyptic number.

It is an amenable number.

2552028221 is a deficient number, since it is larger than the sum of its proper divisors (83510467).

2552028221 is a wasteful number, since it uses less digits than its factorization.

2552028221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37123.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 2552028221 is about 50517.6030805105. The cubic root of 2552028221 is about 1366.5593277255.

The spelling of 2552028221 in words is "two billion, five hundred fifty-two million, twenty-eight thousand, two hundred twenty-one".