5255161 has 2 divisors, whose sum is σ = 5255162. Its totient is φ = 5255160.

The previous prime is 5255149. The next prime is 5255167. The reversal of 5255161 is 1615525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2755600 + 2499561 = 1660^2 + 1581^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5255161 is a prime.

It is not a weakly prime, because it can be changed into another prime (5255167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2627580 + 2627581.

It is an arithmetic number, because the mean of its divisors is an integer number (2627581).

Almost surely, 2^5255161 is an apocalyptic number.

It is an amenable number.

5255161 is a deficient number, since it is larger than the sum of its proper divisors (1).

5255161 is an equidigital number, since it uses as much as digits as its factorization.

5255161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1500, while the sum is 25.

The square root of 5255161 is about 2292.4137933628. The cubic root of 5255161 is about 173.8582652544.

Subtracting from 5255161 its product of digits (1500), we obtain a triangular number (5253661 = T₃₂₄₁).

The spelling of 5255161 in words is "five million, two hundred fifty-five thousand, one hundred sixty-one".