254783999 has 2 divisors, whose sum is σ = 254784000. Its totient is φ = 254783998.

The previous prime is 254783989. The next prime is 254784011. The reversal of 254783999 is 999387452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 254783999 - 2²⁰ = 253735423 is a prime.

It is a super-2 number, since 2×254783999² = 129829772292864002, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254783909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127391999 + 127392000.

It is an arithmetic number, because the mean of its divisors is an integer number (127392000).

Almost surely, 2^254783999 is an apocalyptic number.

254783999 is a deficient number, since it is larger than the sum of its proper divisors (1).

254783999 is an equidigital number, since it uses as much as digits as its factorization.

254783999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 56.

The square root of 254783999 is about 15961.9547361844. The cubic root of 254783999 is about 633.9534699338.

The spelling of 254783999 in words is "two hundred fifty-four million, seven hundred eighty-three thousand, nine hundred ninety-nine".