25669797 has 8 divisors (see below), whose sum is σ = 34253856. Its totient is φ = 17099472.

The previous prime is 25669783. The next prime is 25669799. The reversal of 25669797 is 79796652.

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

It is not a de Polignac number, because 25669797 - 2⁶ = 25669733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25669799) 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, 2298 + ... + 7524.

It is an arithmetic number, because the mean of its divisors is an integer number (4281732).

Almost surely, 2^25669797 is an apocalyptic number.

It is an amenable number.

25669797 is a deficient number, since it is larger than the sum of its proper divisors (8584059).

25669797 is a wasteful number, since it uses less digits than its factorization.

25669797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867.

The product of its digits is 1428840, while the sum is 51.

The square root of 25669797 is about 5066.5369829895. The cubic root of 25669797 is about 294.9901251123.

The spelling of 25669797 in words is "twenty-five million, six hundred sixty-nine thousand, seven hundred ninety-seven".