254550221 has 4 divisors (see below), whose sum is σ = 254607744. Its totient is φ = 254492700.

The previous prime is 254550203. The next prime is 254550227. The reversal of 254550221 is 122055452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254550221 - 2⁶ = 254550157 is a prime.

It is a super-2 number, since 2×254550221² = 129591630022297682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254550227) 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 3 ways as a sum of consecutive naturals, for example, 21515 + ... + 31176.

It is an arithmetic number, because the mean of its divisors is an integer number (63651936).

Almost surely, 2^254550221 is an apocalyptic number.

It is an amenable number.

254550221 is a deficient number, since it is larger than the sum of its proper divisors (57523).

254550221 is an equidigital number, since it uses as much as digits as its factorization.

254550221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57522.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 254550221 is about 15954.6300803246. The cubic root of 254550221 is about 633.7595151506.

The spelling of 254550221 in words is "two hundred fifty-four million, five hundred fifty thousand, two hundred twenty-one".