254775257 has 4 divisors (see below), whose sum is σ = 277936656. Its totient is φ = 231613860.

The previous prime is 254775251. The next prime is 254775259. The reversal of 254775257 is 752577452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254775257 - 2²⁶ = 187666393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254775251) 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 in 3 ways as a sum of consecutive naturals, for example, 11580683 + ... + 11580704.

It is an arithmetic number, because the mean of its divisors is an integer number (69484164).

Almost surely, 2^254775257 is an apocalyptic number.

It is an amenable number.

254775257 is a deficient number, since it is larger than the sum of its proper divisors (23161399).

254775257 is a wasteful number, since it uses less digits than its factorization.

254775257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23161398.

The product of its digits is 686000, while the sum is 44.

The square root of 254775257 is about 15961.6808951940. The cubic root of 254775257 is about 633.9462192370.

The spelling of 254775257 in words is "two hundred fifty-four million, seven hundred seventy-five thousand, two hundred fifty-seven".