25778348 has 6 divisors (see below), whose sum is σ = 45112116. Its totient is φ = 12889172.

The previous prime is 25778323. The next prime is 25778353. The reversal of 25778348 is 84387752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25778299 and 25778308.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3222290 + ... + 3222297.

It is an arithmetic number, because the mean of its divisors is an integer number (7518686).

Almost surely, 2^25778348 is an apocalyptic number.

It is an amenable number.

25778348 is a deficient number, since it is larger than the sum of its proper divisors (19333768).

25778348 is a wasteful number, since it uses less digits than its factorization.

25778348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444591 (or 6444589 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 25778348 is about 5077.2382256498. The cubic root of 25778348 is about 295.4053529375.

The spelling of 25778348 in words is "twenty-five million, seven hundred seventy-eight thousand, three hundred forty-eight".