254563489 has 4 divisors (see below), whose sum is σ = 254743060. Its totient is φ = 254383920.

The previous prime is 254563481. The next prime is 254563493. The reversal of 254563489 is 984365452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142563600 + 111999889 = 11940^2 + 10583^2 .

It is a cyclic number.

It is not a de Polignac number, because 254563489 - 2³ = 254563481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254563481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87642 + ... + 90499.

It is an arithmetic number, because the mean of its divisors is an integer number (63685765).

Almost surely, 2^254563489 is an apocalyptic number.

It is an amenable number.

254563489 is a deficient number, since it is larger than the sum of its proper divisors (179571).

254563489 is a wasteful number, since it uses less digits than its factorization.

254563489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179570.

The product of its digits is 1036800, while the sum is 46.

The square root of 254563489 is about 15955.0458789688. The cubic root of 254563489 is about 633.7705261738.

The spelling of 254563489 in words is "two hundred fifty-four million, five hundred sixty-three thousand, four hundred eighty-nine".