255326129 has 2 divisors, whose sum is σ = 255326130. Its totient is φ = 255326128.

The previous prime is 255326101. The next prime is 255326143. The reversal of 255326129 is 921623552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218359729 + 36966400 = 14777^2 + 6080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255326129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255326189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127663064 + 127663065.

It is an arithmetic number, because the mean of its divisors is an integer number (127663065).

Almost surely, 2^255326129 is an apocalyptic number.

It is an amenable number.

255326129 is a deficient number, since it is larger than the sum of its proper divisors (1).

255326129 is an equidigital number, since it uses as much as digits as its factorization.

255326129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 255326129 is about 15978.9276548835. The cubic root of 255326129 is about 634.4027939613.

It can be divided in two parts, 2553 and 26129, that added together give a palindrome (28682).

The spelling of 255326129 in words is "two hundred fifty-five million, three hundred twenty-six thousand, one hundred twenty-nine".