254992 has 10 divisors (see below), whose sum is σ = 494078. Its totient is φ = 127488.

The previous prime is 254987. The next prime is 254993. The reversal of 254992 is 299452.

It can be written as a sum of positive squares in only one way, i.e., 234256 + 20736 = 484^2 + 144^2 .

It is not an unprimeable number, because it can be changed into a prime (254993) by changing a digit.

254992 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7953 + ... + 7984.

2²⁵⁴⁹⁹² is an apocalyptic number.

It is an amenable number.

254992 is a deficient number, since it is larger than the sum of its proper divisors (239086).

254992 is a wasteful number, since it uses less digits than its factorization.

254992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945 (or 15939 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 254992 is about 504.9673256756. The cubic root of 254992 is about 63.4125939017.

The spelling of 254992 in words is "two hundred fifty-four thousand, nine hundred ninety-two".