25889378 has 4 divisors (see below), whose sum is σ = 38834070. Its totient is φ = 12944688.

The previous prime is 25889341. The next prime is 25889389. The reversal of 25889378 is 87398852.

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

It can be written as a sum of positive squares in only one way, i.e., 21279769 + 4609609 = 4613^2 + 2147^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472343 + ... + 6472346.

Almost surely, 2^25889378 is an apocalyptic number.

25889378 is a deficient number, since it is larger than the sum of its proper divisors (12944692).

25889378 is a wasteful number, since it uses less digits than its factorization.

25889378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12944691.

The product of its digits is 967680, while the sum is 50.

The square root of 25889378 is about 5088.1605713656. The cubic root of 25889378 is about 295.8288592504.

The spelling of 25889378 in words is "twenty-five million, eight hundred eighty-nine thousand, three hundred seventy-eight".