25895649 has 8 divisors (see below), whose sum is σ = 37183552. Its totient is φ = 15935760.

The previous prime is 25895621. The next prime is 25895657. The reversal of 25895649 is 94659852.

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

It is not a de Polignac number, because 25895649 - 2¹² = 25891553 is a prime.

It is a super-3 number, since 3×25895649³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25895598 and 25895607.

It is not an unprimeable number, because it can be changed into a prime (25895669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331957 + ... + 332034.

It is an arithmetic number, because the mean of its divisors is an integer number (4647944).

Almost surely, 2^25895649 is an apocalyptic number.

It is an amenable number.

25895649 is a deficient number, since it is larger than the sum of its proper divisors (11287903).

25895649 is a wasteful number, since it uses less digits than its factorization.

25895649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664007.

The product of its digits is 777600, while the sum is 48.

The square root of 25895649 is about 5088.7767685368. The cubic root of 25895649 is about 295.8527428293.

The spelling of 25895649 in words is "twenty-five million, eight hundred ninety-five thousand, six hundred forty-nine".