254981567 has 2 divisors, whose sum is σ = 254981568. Its totient is φ = 254981566.

The previous prime is 254981563. The next prime is 254981579. The reversal of 254981567 is 765189452.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254981567 - 2² = 254981563 is a prime.

It is a super-3 number, since 3×254981567³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254981563) 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, 127490783 + 127490784.

It is an arithmetic number, because the mean of its divisors is an integer number (127490784).

Almost surely, 2^254981567 is an apocalyptic number.

254981567 is a deficient number, since it is larger than the sum of its proper divisors (1).

254981567 is an equidigital number, since it uses as much as digits as its factorization.

254981567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 47.

The square root of 254981567 is about 15968.1422526229. The cubic root of 254981567 is about 634.1172904766.

The spelling of 254981567 in words is "two hundred fifty-four million, nine hundred eighty-one thousand, five hundred sixty-seven".