25235237 has 4 divisors (see below), whose sum is σ = 25539360. Its totient is φ = 24931116.

The previous prime is 25235233. The next prime is 25235239. The reversal of 25235237 is 73253252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25235237 - 2² = 25235233 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25235233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151937 + ... + 152102.

It is an arithmetic number, because the mean of its divisors is an integer number (6384840).

Almost surely, 2^25235237 is an apocalyptic number.

It is an amenable number.

25235237 is a deficient number, since it is larger than the sum of its proper divisors (304123).

25235237 is an equidigital number, since it uses as much as digits as its factorization.

25235237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304122.

The product of its digits is 12600, while the sum is 29.

The square root of 25235237 is about 5023.4686223764. The cubic root of 25235237 is about 293.3160284500.

Adding to 25235237 its reverse (73253252), we get a palindrome (98488489).

The spelling of 25235237 in words is "twenty-five million, two hundred thirty-five thousand, two hundred thirty-seven".