255712262461 has 2 divisors, whose sum is σ = 255712262462. Its totient is φ = 255712262460.

The previous prime is 255712262383. The next prime is 255712262497. The reversal of 255712262461 is 164262217552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247027886361 + 8684376100 = 497019^2 + 93190^2 .

It is a cyclic number.

It is not a de Polignac number, because 255712262461 - 2¹³ = 255712254269 is a prime.

It is a super-2 number, since 2×255712262461² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255712262761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127856131230 + 127856131231.

It is an arithmetic number, because the mean of its divisors is an integer number (127856131231).

Almost surely, 2^255712262461 is an apocalyptic number.

It is an amenable number.

255712262461 is a deficient number, since it is larger than the sum of its proper divisors (1).

255712262461 is an equidigital number, since it uses as much as digits as its factorization.

255712262461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 43.

The spelling of 255712262461 in words is "two hundred fifty-five billion, seven hundred twelve million, two hundred sixty-two thousand, four hundred sixty-one".