25237 has 2 divisors, whose sum is σ = 25238. Its totient is φ = 25236.

The previous prime is 25229. The next prime is 25243. The reversal of 25237 is 73252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23716 + 1521 = 154^2 + 39^2 .

It is a cyclic number.

It is not a de Polignac number, because 25237 - 2³ = 25229 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2⁵ + 5³ + 2¹³ + 3⁴ + 7⁵ .

25237 is a lucky number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12618 + 12619.

It is an arithmetic number, because the mean of its divisors is an integer number (12619).

2²⁵²³⁷ is an apocalyptic number.

It is an amenable number.

25237 is a deficient number, since it is larger than the sum of its proper divisors (1).

25237 is an equidigital number, since it uses as much as digits as its factorization.

25237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420, while the sum is 19.

The square root of 25237 is about 158.8615749639. The cubic root of 25237 is about 29.3322858901.

Adding to 25237 its reverse (73252), we get a palindrome (98489).

It can be divided in two parts, 252 and 37, that added together give a square (289 = 17²).

The spelling of 25237 in words is "twenty-five thousand, two hundred thirty-seven".