254456879 has 2 divisors, whose sum is σ = 254456880. Its totient is φ = 254456878.

The previous prime is 254456863. The next prime is 254456887. The reversal of 254456879 is 978654452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254456879 - 2⁴ = 254456863 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254456809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127228439 + 127228440.

It is an arithmetic number, because the mean of its divisors is an integer number (127228440).

Almost surely, 2^254456879 is an apocalyptic number.

254456879 is a deficient number, since it is larger than the sum of its proper divisors (1).

254456879 is an equidigital number, since it uses as much as digits as its factorization.

254456879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 50.

The square root of 254456879 is about 15951.7045797620. The cubic root of 254456879 is about 633.6820404416.

The spelling of 254456879 in words is "two hundred fifty-four million, four hundred fifty-six thousand, eight hundred seventy-nine".