254605783 has 2 divisors, whose sum is σ = 254605784. Its totient is φ = 254605782.

The previous prime is 254605763. The next prime is 254605789. The reversal of 254605783 is 387506452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254605783 - 2¹⁷ = 254474711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254605789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127302891 + 127302892.

It is an arithmetic number, because the mean of its divisors is an integer number (127302892).

Almost surely, 2^254605783 is an apocalyptic number.

254605783 is a deficient number, since it is larger than the sum of its proper divisors (1).

254605783 is an equidigital number, since it uses as much as digits as its factorization.

254605783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 254605783 is about 15956.3712353404. The cubic root of 254605783 is about 633.8056231240.

The spelling of 254605783 in words is "two hundred fifty-four million, six hundred five thousand, seven hundred eighty-three".