2555225221 has 8 divisors (see below), whose sum is σ = 2564568000. Its totient is φ = 2545895520.

The previous prime is 2555225173. The next prime is 2555225243. The reversal of 2555225221 is 1225225552.

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

It is a cyclic number.

It is not a de Polignac number, because 2555225221 - 2⁷ = 2555225093 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 (2555225921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547305 + ... + 551953.

It is an arithmetic number, because the mean of its divisors is an integer number (320571000).

Almost surely, 2^2555225221 is an apocalyptic number.

It is an amenable number.

2555225221 is a deficient number, since it is larger than the sum of its proper divisors (9342779).

2555225221 is a wasteful number, since it uses less digits than its factorization.

2555225221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539.

The product of its digits is 20000, while the sum is 31.

The square root of 2555225221 is about 50549.2356124205. The cubic root of 2555225221 is about 1367.1297324802.

The spelling of 2555225221 in words is "two billion, five hundred fifty-five million, two hundred twenty-five thousand, two hundred twenty-one".