25978416 has 20 divisors (see below), whose sum is σ = 67111032. Its totient is φ = 8659456.

The previous prime is 25978411. The next prime is 25978417. The reversal of 25978416 is 61487952.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (25978411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270561 + ... + 270656.

Almost surely, 2^25978416 is an apocalyptic number.

It is an amenable number.

25978416 is an abundant number, since it is smaller than the sum of its proper divisors (41132616).

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

25978416 is a wasteful number, since it uses less digits than its factorization.

25978416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541228 (or 541222 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 25978416 is about 5096.9025888278. The cubic root of 25978416 is about 296.1676065621.

The spelling of 25978416 in words is "twenty-five million, nine hundred seventy-eight thousand, four hundred sixteen".