255470261 has 2 divisors, whose sum is σ = 255470262. Its totient is φ = 255470260.

The previous prime is 255470233. The next prime is 255470273. The reversal of 255470261 is 162074552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249829636 + 5640625 = 15806^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 255470261 - 2¹⁸ = 255208117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255470231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127735130 + 127735131.

It is an arithmetic number, because the mean of its divisors is an integer number (127735131).

Almost surely, 2^255470261 is an apocalyptic number.

It is an amenable number.

255470261 is a deficient number, since it is larger than the sum of its proper divisors (1).

255470261 is an equidigital number, since it uses as much as digits as its factorization.

255470261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 255470261 is about 15983.4370834311. The cubic root of 255470261 is about 634.5221452966.

The spelling of 255470261 in words is "two hundred fifty-five million, four hundred seventy thousand, two hundred sixty-one".