255874249 has 2 divisors, whose sum is σ = 255874250. Its totient is φ = 255874248.

The previous prime is 255874247. The next prime is 255874253. The reversal of 255874249 is 942478552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189337600 + 66536649 = 13760^2 + 8157^2 .

It is a cyclic number.

It is not a de Polignac number, because 255874249 - 2¹ = 255874247 is a prime.

Together with 255874247, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 255874199 and 255874208.

It is not a weakly prime, because it can be changed into another prime (255874243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127937124 + 127937125.

It is an arithmetic number, because the mean of its divisors is an integer number (127937125).

Almost surely, 2^255874249 is an apocalyptic number.

It is an amenable number.

255874249 is a deficient number, since it is larger than the sum of its proper divisors (1).

255874249 is an equidigital number, since it uses as much as digits as its factorization.

255874249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The square root of 255874249 is about 15996.0697985474. The cubic root of 255874249 is about 634.8564364312.

The spelling of 255874249 in words is "two hundred fifty-five million, eight hundred seventy-four thousand, two hundred forty-nine".