25978495 has 8 divisors (see below), whose sum is σ = 31202640. Its totient is φ = 20763840.

The previous prime is 25978487. The next prime is 25978501. The reversal of 25978495 is 59487952.

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

It is not a de Polignac number, because 25978495 - 2³ = 25978487 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7096 + ... + 10114.

It is an arithmetic number, because the mean of its divisors is an integer number (3900330).

Almost surely, 2^25978495 is an apocalyptic number.

25978495 is a deficient number, since it is larger than the sum of its proper divisors (5224145).

25978495 is a wasteful number, since it uses less digits than its factorization.

25978495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745.

The product of its digits is 907200, while the sum is 49.

The square root of 25978495 is about 5096.9103386267. The cubic root of 25978495 is about 296.1679067756.

The spelling of 25978495 in words is "twenty-five million, nine hundred seventy-eight thousand, four hundred ninety-five".