254660251 has 2 divisors, whose sum is σ = 254660252. Its totient is φ = 254660250.

The previous prime is 254660183. The next prime is 254660261. The reversal of 254660251 is 152066452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254660251 - 2²¹ = 252563099 is a prime.

It is not a weakly prime, because it can be changed into another prime (254660261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127330125 + 127330126.

It is an arithmetic number, because the mean of its divisors is an integer number (127330126).

Almost surely, 2^254660251 is an apocalyptic number.

254660251 is a deficient number, since it is larger than the sum of its proper divisors (1).

254660251 is an equidigital number, since it uses as much as digits as its factorization.

254660251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 254660251 is about 15958.0779231084. The cubic root of 254660251 is about 633.8508167337.

The spelling of 254660251 in words is "two hundred fifty-four million, six hundred sixty thousand, two hundred fifty-one".