25478788 has 12 divisors (see below), whose sum is σ = 44983260. Its totient is φ = 12626432.

The previous prime is 25478777. The next prime is 25478797. The reversal of 25478788 is 88787452.

It can be written as a sum of positive squares in 2 ways, for example, as 956484 + 24522304 = 978^2 + 4952^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27733 + ... + 28636.

It is an arithmetic number, because the mean of its divisors is an integer number (3748605).

Almost surely, 2^25478788 is an apocalyptic number.

It is an amenable number.

25478788 is a deficient number, since it is larger than the sum of its proper divisors (19504472).

25478788 is a wasteful number, since it uses less digits than its factorization.

25478788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56486 (or 56484 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 49.

The square root of 25478788 is about 5047.6517312509. The cubic root of 25478788 is about 294.2566287814.

The spelling of 25478788 in words is "twenty-five million, four hundred seventy-eight thousand, seven hundred eighty-eight".