25917378 has 8 divisors (see below), whose sum is σ = 51834768. Its totient is φ = 8639124.

The previous prime is 25917373. The next prime is 25917379. The reversal of 25917378 is 87371952.

It is a sphenic number, since it is the product of 3 distinct primes.

25917378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25917373) 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, 2159776 + ... + 2159787.

It is an arithmetic number, because the mean of its divisors is an integer number (6479346).

Almost surely, 2^25917378 is an apocalyptic number.

25917378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25917378 is a wasteful number, since it uses less digits than its factorization.

25917378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319568.

The product of its digits is 105840, while the sum is 42.

The square root of 25917378 is about 5090.9113133112. The cubic root of 25917378 is about 295.9354695584.

The spelling of 25917378 in words is "twenty-five million, nine hundred seventeen thousand, three hundred seventy-eight".