255214409 has 2 divisors, whose sum is σ = 255214410. Its totient is φ = 255214408.

The previous prime is 255214363. The next prime is 255214429. The reversal of 255214409 is 904412552.

255214409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239785225 + 15429184 = 15485^2 + 3928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255214409 is a prime.

It is a super-2 number, since 2×255214409² = 130268789122438562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255214429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127607204 + 127607205.

It is an arithmetic number, because the mean of its divisors is an integer number (127607205).

Almost surely, 2^255214409 is an apocalyptic number.

It is an amenable number.

255214409 is a deficient number, since it is larger than the sum of its proper divisors (1).

255214409 is an equidigital number, since it uses as much as digits as its factorization.

255214409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 255214409 is about 15975.4314182748. The cubic root of 255214409 is about 634.3102511151.

It can be divided in two parts, 2552 and 14409, that added together give a palindrome (16961).

The spelling of 255214409 in words is "two hundred fifty-five million, two hundred fourteen thousand, four hundred nine".