25160281 has 2 divisors, whose sum is σ = 25160282. Its totient is φ = 25160280.

The previous prime is 25160279. The next prime is 25160293. The reversal of 25160281 is 18206152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25160256 + 25 = 5016^2 + 5^2 .

It is a cyclic number.

It is not a de Polignac number, because 25160281 - 2¹ = 25160279 is a prime.

It is a super-2 number, since 2×25160281² = 1266079479997922, which contains 22 as substring.

Together with 25160279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25160381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12580140 + 12580141.

It is an arithmetic number, because the mean of its divisors is an integer number (12580141).

Almost surely, 2^25160281 is an apocalyptic number.

It is an amenable number.

25160281 is a deficient number, since it is larger than the sum of its proper divisors (1).

25160281 is an equidigital number, since it uses as much as digits as its factorization.

25160281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 25160281 is about 5016.0024920249. The cubic root of 25160281 is about 293.0253291091.

Subtracting from 25160281 its sum of digits (25), we obtain a square (25160256 = 5016²).

The spelling of 25160281 in words is "twenty-five million, one hundred sixty thousand, two hundred eighty-one".