254427221 has 8 divisors (see below), whose sum is σ = 257059224. Its totient is φ = 251806720.

The previous prime is 254427209. The next prime is 254427223. The reversal of 254427221 is 122724452.

It can be written as a sum of positive squares in 4 ways, for example, as 62188996 + 192238225 = 7886^2 + 13865^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254427221 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 (254427223) 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, 45731 + ... + 50991.

It is an arithmetic number, because the mean of its divisors is an integer number (32132403).

Almost surely, 2^254427221 is an apocalyptic number.

It is an amenable number.

254427221 is a deficient number, since it is larger than the sum of its proper divisors (2632003).

254427221 is a wasteful number, since it uses less digits than its factorization.

254427221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751.

The product of its digits is 8960, while the sum is 29.

The square root of 254427221 is about 15950.7749341529. The cubic root of 254427221 is about 633.6574200655.

The spelling of 254427221 in words is "two hundred fifty-four million, four hundred twenty-seven thousand, two hundred twenty-one".