25789469 has 4 divisors (see below), whose sum is σ = 25806396. Its totient is φ = 25772544.

The previous prime is 25789453. The next prime is 25789501. The reversal of 25789469 is 96498752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6692569 + 19096900 = 2587^2 + 4370^2 .

It is a cyclic number.

It is not a de Polignac number, because 25789469 - 2⁴ = 25789453 is a prime.

It is a super-2 number, since 2×25789469² = 1330193422603922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25789769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5924 + ... + 9309.

It is an arithmetic number, because the mean of its divisors is an integer number (6451599).

Almost surely, 2^25789469 is an apocalyptic number.

It is an amenable number.

25789469 is a deficient number, since it is larger than the sum of its proper divisors (16927).

25789469 is a wasteful number, since it uses less digits than its factorization.

25789469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16926.

The product of its digits is 1088640, while the sum is 50.

The square root of 25789469 is about 5078.3332895744. Note that the first 3 decimals coincide. The cubic root of 25789469 is about 295.4478269629.

The spelling of 25789469 in words is "twenty-five million, seven hundred eighty-nine thousand, four hundred sixty-nine".