255125161 has 2 divisors, whose sum is σ = 255125162. Its totient is φ = 255125160.

The previous prime is 255125147. The next prime is 255125173. The reversal of 255125161 is 161521552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142659136 + 112466025 = 11944^2 + 10605^2 .

It is a cyclic number.

It is not a de Polignac number, because 255125161 - 2²⁵ = 221570729 is a prime.

It is not a weakly prime, because it can be changed into another prime (255125861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127562580 + 127562581.

It is an arithmetic number, because the mean of its divisors is an integer number (127562581).

Almost surely, 2^255125161 is an apocalyptic number.

It is an amenable number.

255125161 is a deficient number, since it is larger than the sum of its proper divisors (1).

255125161 is an equidigital number, since it uses as much as digits as its factorization.

255125161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 28.

The square root of 255125161 is about 15972.6378848329. The cubic root of 255125161 is about 634.2363034598.

It can be divided in two parts, 255 and 125161, that multiplied together give a triangular number (31916055 = T₇₉₈₉).

The spelling of 255125161 in words is "two hundred fifty-five million, one hundred twenty-five thousand, one hundred sixty-one".