25969321 has 8 divisors (see below), whose sum is σ = 29942784. Its totient is φ = 22061760.

The previous prime is 25969313. The next prime is 25969327. The reversal of 25969321 is 12396952.

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

It is not a de Polignac number, because 25969321 - 2³ = 25969313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25969327) 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, 15625 + ... + 17206.

It is an arithmetic number, because the mean of its divisors is an integer number (3742848).

Almost surely, 2^25969321 is an apocalyptic number.

It is an amenable number.

25969321 is a deficient number, since it is larger than the sum of its proper divisors (3973463).

25969321 is a wasteful number, since it uses less digits than its factorization.

25969321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32951.

The product of its digits is 29160, while the sum is 37.

The square root of 25969321 is about 5096.0103021874. The cubic root of 25969321 is about 296.1330399333.

The spelling of 25969321 in words is "twenty-five million, nine hundred sixty-nine thousand, three hundred twenty-one".