25673 has 2 divisors, whose sum is σ = 25674. Its totient is φ = 25672.

The previous prime is 25667. The next prime is 25679. The reversal of 25673 is 37652.

It is a balanced prime because it is at equal distance from previous prime (25667) and next prime (25679).

It can be written as a sum of positive squares in only one way, i.e., 24649 + 1024 = 157^2 + 32^2 .

It is a cyclic number.

It is not a de Polignac number, because 25673 - 2⁴ = 25657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 8.

It is not a weakly prime, because it can be changed into another prime (25679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836 + 12837.

It is an arithmetic number, because the mean of its divisors is an integer number (12837).

2²⁵⁶⁷³ is an apocalyptic number.

It is an amenable number.

25673 is a deficient number, since it is larger than the sum of its proper divisors (1).

25673 is an equidigital number, since it uses as much as digits as its factorization.

25673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 23.

The square root of 25673 is about 160.2279626033. The cubic root of 25673 is about 29.5002393929.

The spelling of 25673 in words is "twenty-five thousand, six hundred seventy-three".