254650261 has 2 divisors, whose sum is σ = 254650262. Its totient is φ = 254650260.

The previous prime is 254650241. The next prime is 254650301. The reversal of 254650261 is 162056452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241647025 + 13003236 = 15545^2 + 3606^2 .

It is a cyclic number.

It is not a de Polignac number, because 254650261 - 2⁵ = 254650229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254650241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127325130 + 127325131.

It is an arithmetic number, because the mean of its divisors is an integer number (127325131).

Almost surely, 2^254650261 is an apocalyptic number.

It is an amenable number.

254650261 is a deficient number, since it is larger than the sum of its proper divisors (1).

254650261 is an equidigital number, since it uses as much as digits as its factorization.

254650261 is an odious number, because the sum of its binary digits is odd.

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

The square root of 254650261 is about 15957.7649124180. The cubic root of 254650261 is about 633.8425282364.

The spelling of 254650261 in words is "two hundred fifty-four million, six hundred fifty thousand, two hundred sixty-one".