25878254 has 4 divisors (see below), whose sum is σ = 38817384. Its totient is φ = 12939126.

The previous prime is 25878253. The next prime is 25878269. The reversal of 25878254 is 45287852.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25878253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6469562 + ... + 6469565.

It is an arithmetic number, because the mean of its divisors is an integer number (9704346).

Almost surely, 2^25878254 is an apocalyptic number.

25878254 is a deficient number, since it is larger than the sum of its proper divisors (12939130).

25878254 is a wasteful number, since it uses less digits than its factorization.

25878254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12939129.

The product of its digits is 179200, while the sum is 41.

The square root of 25878254 is about 5087.0673280388. The cubic root of 25878254 is about 295.7864831626.

The spelling of 25878254 in words is "twenty-five million, eight hundred seventy-eight thousand, two hundred fifty-four".