254799989 has 8 divisors (see below), whose sum is σ = 259732632. Its totient is φ = 249891840.

The previous prime is 254799959. The next prime is 254800001. The reversal of 254799989 is 989997452.

It can be written as a sum of positive squares in 4 ways, for example, as 24671089 + 230128900 = 4967^2 + 15170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254799989 - 2²⁰ = 253751413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254799929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15617 + ... + 27449.

It is an arithmetic number, because the mean of its divisors is an integer number (32466579).

Almost surely, 2^254799989 is an apocalyptic number.

It is an amenable number.

254799989 is a deficient number, since it is larger than the sum of its proper divisors (4932643).

254799989 is a wasteful number, since it uses less digits than its factorization.

254799989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247.

The product of its digits is 14696640, while the sum is 62.

The square root of 254799989 is about 15962.4556068294. The cubic root of 254799989 is about 633.9667317608.

The spelling of 254799989 in words is "two hundred fifty-four million, seven hundred ninety-nine thousand, nine hundred eighty-nine".