25896389 has 8 divisors (see below), whose sum is σ = 28003968. Its totient is φ = 23853760.

The previous prime is 25896347. The next prime is 25896397. The reversal of 25896389 is 98369852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25896389 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25896089) 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, 15407 + ... + 17004.

It is an arithmetic number, because the mean of its divisors is an integer number (3500496).

Almost surely, 2^25896389 is an apocalyptic number.

It is an amenable number.

25896389 is a deficient number, since it is larger than the sum of its proper divisors (2107579).

25896389 is a wasteful number, since it uses less digits than its factorization.

25896389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32475.

The product of its digits is 933120, while the sum is 50.

The square root of 25896389 is about 5088.8494770429. The cubic root of 25896389 is about 295.8555609211.

The spelling of 25896389 in words is "twenty-five million, eight hundred ninety-six thousand, three hundred eighty-nine".