255027500261 has 2 divisors, whose sum is σ = 255027500262. Its totient is φ = 255027500260.

The previous prime is 255027500183. The next prime is 255027500281. The reversal of 255027500261 is 162005720552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191576913025 + 63450587236 = 437695^2 + 251894^2 .

It is a cyclic number.

It is not a de Polignac number, because 255027500261 - 2¹⁸ = 255027238117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255027500281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127513750130 + 127513750131.

It is an arithmetic number, because the mean of its divisors is an integer number (127513750131).

Almost surely, 2^255027500261 is an apocalyptic number.

It is an amenable number.

255027500261 is a deficient number, since it is larger than the sum of its proper divisors (1).

255027500261 is an equidigital number, since it uses as much as digits as its factorization.

255027500261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 255027500261 in words is "two hundred fifty-five billion, twenty-seven million, five hundred thousand, two hundred sixty-one".