25242489 has 8 divisors (see below), whose sum is σ = 37396320. Its totient is φ = 16828308.

The previous prime is 25242479. The next prime is 25242491. The reversal of 25242489 is 98424252.

It is not a de Polignac number, because 25242489 - 2⁷ = 25242361 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25242439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467427 + ... + 467480.

It is an arithmetic number, because the mean of its divisors is an integer number (4674540).

Almost surely, 2^25242489 is an apocalyptic number.

It is an amenable number.

25242489 is a deficient number, since it is larger than the sum of its proper divisors (12153831).

25242489 is an equidigital number, since it uses as much as digits as its factorization.

25242489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934916 (or 934910 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 25242489 is about 5024.1903825393. The cubic root of 25242489 is about 293.3441230822.

The spelling of 25242489 in words is "twenty-five million, two hundred forty-two thousand, four hundred eighty-nine".