255234409 has 2 divisors, whose sum is σ = 255234410. Its totient is φ = 255234408.

The previous prime is 255234407. The next prime is 255234437. The reversal of 255234409 is 904432552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167624809 + 87609600 = 12947^2 + 9360^2 .

It is a cyclic number.

It is not a de Polignac number, because 255234409 - 2¹ = 255234407 is a prime.

Together with 255234407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255234403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127617204 + 127617205.

It is an arithmetic number, because the mean of its divisors is an integer number (127617205).

Almost surely, 2^255234409 is an apocalyptic number.

It is an amenable number.

255234409 is a deficient number, since it is larger than the sum of its proper divisors (1).

255234409 is an equidigital number, since it uses as much as digits as its factorization.

255234409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 255234409 is about 15976.0573671980. The cubic root of 255234409 is about 634.3268200250.

The spelling of 255234409 in words is "two hundred fifty-five million, two hundred thirty-four thousand, four hundred nine".