255434261 has 2 divisors, whose sum is σ = 255434262. Its totient is φ = 255434260.

The previous prime is 255434161. The next prime is 255434287. The reversal of 255434261 is 162434552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141158161 + 114276100 = 11881^2 + 10690^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255434261 is a prime.

It is a super-2 number, since 2×255434261² = 130493323385232242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255434161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127717130 + 127717131.

It is an arithmetic number, because the mean of its divisors is an integer number (127717131).

Almost surely, 2^255434261 is an apocalyptic number.

It is an amenable number.

255434261 is a deficient number, since it is larger than the sum of its proper divisors (1).

255434261 is an equidigital number, since it uses as much as digits as its factorization.

255434261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 32.

The square root of 255434261 is about 15982.3108779676. The cubic root of 255434261 is about 634.4923389959.

The spelling of 255434261 in words is "two hundred fifty-five million, four hundred thirty-four thousand, two hundred sixty-one".