2554311221 has 8 divisors (see below), whose sum is σ = 3184595904. Its totient is φ = 1990372320.

The previous prime is 2554311211. The next prime is 2554311257. The reversal of 2554311221 is 1221134552.

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 2554311221 - 2²² = 2550116917 is a prime.

It is a super-3 number, since 3×2554311221³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554311211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16586360 + ... + 16586513.

It is an arithmetic number, because the mean of its divisors is an integer number (398074488).

Almost surely, 2^2554311221 is an apocalyptic number.

It is an amenable number.

2554311221 is a deficient number, since it is larger than the sum of its proper divisors (630284683).

2554311221 is a wasteful number, since it uses less digits than its factorization.

2554311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33172891.

The product of its digits is 2400, while the sum is 26.

The square root of 2554311221 is about 50540.1941132006. The cubic root of 2554311221 is about 1366.9667063298.

Adding to 2554311221 its reverse (1221134552), we get a palindrome (3775445773).

It can be divided in two parts, 255431 and 1221, that added together give a palindrome (256652).

The spelling of 2554311221 in words is "two billion, five hundred fifty-four million, three hundred eleven thousand, two hundred twenty-one".