25769091 has 8 divisors (see below), whose sum is σ = 35467264. Its totient is φ = 16625160.

The previous prime is 25769087. The next prime is 25769099. The reversal of 25769091 is 19096752.

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

It is not a de Polignac number, because 25769091 - 2² = 25769087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25769099) 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, 138451 + ... + 138636.

It is an arithmetic number, because the mean of its divisors is an integer number (4433408).

Almost surely, 2^25769091 is an apocalyptic number.

25769091 is a deficient number, since it is larger than the sum of its proper divisors (9698173).

25769091 is a wasteful number, since it uses less digits than its factorization.

25769091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277121.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 25769091 is about 5076.3265261407. The cubic root of 25769091 is about 295.3699887015.

The spelling of 25769091 in words is "twenty-five million, seven hundred sixty-nine thousand, ninety-one".