235255409 has 2 divisors, whose sum is σ = 235255410. Its totient is φ = 235255408.

The previous prime is 235255403. The next prime is 235255429. The reversal of 235255409 is 904552532.

235255409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164224225 + 71031184 = 12815^2 + 8428^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235255409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (235255403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117627704 + 117627705.

It is an arithmetic number, because the mean of its divisors is an integer number (117627705).

Almost surely, 2^235255409 is an apocalyptic number.

It is an amenable number.

235255409 is a deficient number, since it is larger than the sum of its proper divisors (1).

235255409 is an equidigital number, since it uses as much as digits as its factorization.

235255409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 235255409 is about 15338.0379775250. The cubic root of 235255409 is about 617.3240629314.

The spelling of 235255409 in words is "two hundred thirty-five million, two hundred fifty-five thousand, four hundred nine".