25134321 has 8 divisors (see below), whose sum is σ = 35276320. Its totient is φ = 15874272.

The previous prime is 25134301. The next prime is 25134337. The reversal of 25134321 is 12343152.

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

It is not a de Polignac number, because 25134321 - 2⁹ = 25133809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25134301) 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, 220420 + ... + 220533.

It is an arithmetic number, because the mean of its divisors is an integer number (4409540).

Almost surely, 2^25134321 is an apocalyptic number.

It is an amenable number.

25134321 is a deficient number, since it is larger than the sum of its proper divisors (10141999).

25134321 is a wasteful number, since it uses less digits than its factorization.

25134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440975.

The product of its digits is 720, while the sum is 21.

The square root of 25134321 is about 5013.4141061756. The cubic root of 25134321 is about 292.9245147172.

Adding to 25134321 its reverse (12343152), we get a palindrome (37477473).

The spelling of 25134321 in words is "twenty-five million, one hundred thirty-four thousand, three hundred twenty-one".