254445221 has 8 divisors (see below), whose sum is σ = 260860824. Its totient is φ = 248039680.

The previous prime is 254445203. The next prime is 254445271. The reversal of 254445221 is 122544452.

254445221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15124321 + 239320900 = 3889^2 + 15470^2 .

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 254445221 - 2¹⁸ = 254183077 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 (254445271) 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, 95321 + ... + 97953.

It is an arithmetic number, because the mean of its divisors is an integer number (32607603).

Almost surely, 2^254445221 is an apocalyptic number.

It is an amenable number.

254445221 is a deficient number, since it is larger than the sum of its proper divisors (6415603).

254445221 is a wasteful number, since it uses less digits than its factorization.

254445221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031.

The product of its digits is 12800, while the sum is 29.

The square root of 254445221 is about 15951.3391600831. The cubic root of 254445221 is about 633.6723628647.

Adding to 254445221 its reverse (122544452), we get a palindrome (376989673).

The spelling of 254445221 in words is "two hundred fifty-four million, four hundred forty-five thousand, two hundred twenty-one".