254256689 has 4 divisors (see below), whose sum is σ = 267638640. Its totient is φ = 240874740.

The previous prime is 254256683. The next prime is 254256707. The reversal of 254256689 is 986652452.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-254256689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254256683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6690947 + ... + 6690984.

It is an arithmetic number, because the mean of its divisors is an integer number (66909660).

Almost surely, 2^254256689 is an apocalyptic number.

It is an amenable number.

254256689 is a deficient number, since it is larger than the sum of its proper divisors (13381951).

254256689 is a wasteful number, since it uses less digits than its factorization.

254256689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13381950.

The product of its digits is 1036800, while the sum is 47.

The square root of 254256689 is about 15945.4284671187. The cubic root of 254256689 is about 633.5158170062.

The spelling of 254256689 in words is "two hundred fifty-four million, two hundred fifty-six thousand, six hundred eighty-nine".