25955478 has 40 divisors (see below), whose sum is σ = 59276448. Its totient is φ = 8485776.

The previous prime is 25955467. The next prime is 25955483. The reversal of 25955478 is 87455952.

25955478 is a `hidden beast` number, since 2 + 595 + 54 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7075 + ... + 10097.

Almost surely, 2^25955478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25955478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29638224).

25955478 is an abundant number, since it is smaller than the sum of its proper divisors (33320970).

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

25955478 is a wasteful number, since it uses less digits than its factorization.

25955478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3090 (or 3081 counting only the distinct ones).

The product of its digits is 504000, while the sum is 45.

The square root of 25955478 is about 5094.6519017495. The cubic root of 25955478 is about 296.0804124723.

The spelling of 25955478 in words is "twenty-five million, nine hundred fifty-five thousand, four hundred seventy-eight".