25878288 has 40 divisors (see below), whose sum is σ = 67058208. Its totient is φ = 8599552.

The previous prime is 25878287. The next prime is 25878299. The reversal of 25878288 is 88287852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (25878287) 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, 20656 + ... + 21872.

Almost surely, 2^25878288 is an apocalyptic number.

It is an amenable number.

25878288 is an abundant number, since it is smaller than the sum of its proper divisors (41179920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25878288 is a wasteful number, since it uses less digits than its factorization.

25878288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671 (or 1665 counting only the distinct ones).

The product of its digits is 573440, while the sum is 48.

The square root of 25878288 is about 5087.0706698453. The cubic root of 25878288 is about 295.7866127016.

The spelling of 25878288 in words is "twenty-five million, eight hundred seventy-eight thousand, two hundred eighty-eight".