254505221 has 2 divisors, whose sum is σ = 254505222. Its totient is φ = 254505220.

The previous prime is 254505197. The next prime is 254505227. The reversal of 254505221 is 122505452.

254505221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252460321 + 2044900 = 15889^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 254505221 - 2²² = 250310917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254505227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127252610 + 127252611.

It is an arithmetic number, because the mean of its divisors is an integer number (127252611).

Almost surely, 2^254505221 is an apocalyptic number.

It is an amenable number.

254505221 is a deficient number, since it is larger than the sum of its proper divisors (1).

254505221 is an equidigital number, since it uses as much as digits as its factorization.

254505221 is an evil number, because the sum of its binary digits is even.

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

The square root of 254505221 is about 15953.2197690623. The cubic root of 254505221 is about 633.7221671061.

The spelling of 254505221 in words is "two hundred fifty-four million, five hundred five thousand, two hundred twenty-one".