25342689 has 8 divisors (see below), whose sum is σ = 33864480. Its totient is φ = 16858016.

The previous prime is 25342679. The next prime is 25342697. The reversal of 25342689 is 98624352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25342689 - 2⁴ = 25342673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25342679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7644 + ... + 10445.

It is an arithmetic number, because the mean of its divisors is an integer number (4233060).

Almost surely, 2^25342689 is an apocalyptic number.

It is an amenable number.

25342689 is a deficient number, since it is larger than the sum of its proper divisors (8521791).

25342689 is a wasteful number, since it uses less digits than its factorization.

25342689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559.

The product of its digits is 103680, while the sum is 39.

The square root of 25342689 is about 5034.1522622980. The cubic root of 25342689 is about 293.7317535671.

The spelling of 25342689 in words is "twenty-five million, three hundred forty-two thousand, six hundred eighty-nine".