255005430461 has 2 divisors, whose sum is σ = 255005430462. Its totient is φ = 255005430460.

The previous prime is 255005430431. The next prime is 255005430487. The reversal of 255005430461 is 164034500552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251421013561 + 3584416900 = 501419^2 + 59870^2 .

It is a cyclic number.

It is not a de Polignac number, because 255005430461 - 2²⁶ = 254938321597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255005430431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127502715230 + 127502715231.

It is an arithmetic number, because the mean of its divisors is an integer number (127502715231).

Almost surely, 2^255005430461 is an apocalyptic number.

It is an amenable number.

255005430461 is a deficient number, since it is larger than the sum of its proper divisors (1).

255005430461 is an equidigital number, since it uses as much as digits as its factorization.

255005430461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 255005430461 in words is "two hundred fifty-five billion, five million, four hundred thirty thousand, four hundred sixty-one".