25078648 has 32 divisors (see below), whose sum is σ = 56079360. Its totient is φ = 10280160.

The previous prime is 25078643. The next prime is 25078657. The reversal of 25078648 is 84687052.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25078648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25078643) 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, 8448 + ... + 11023.

It is an arithmetic number, because the mean of its divisors is an integer number (1752480).

Almost surely, 2^25078648 is an apocalyptic number.

25078648 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25078648 is an abundant number, since it is smaller than the sum of its proper divisors (31000712).

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

25078648 is a wasteful number, since it uses less digits than its factorization.

25078648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19507 (or 19503 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 25078648 is about 5007.8586242026. The cubic root of 25078648 is about 292.7080770398.

The spelling of 25078648 in words is "twenty-five million, seventy-eight thousand, six hundred forty-eight".