25979878 has 8 divisors (see below), whose sum is σ = 41020920. Its totient is φ = 12306240.

The previous prime is 25979867. The next prime is 25979879. The reversal of 25979878 is 87897952.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25979879) 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, 341803 + ... + 341878.

It is an arithmetic number, because the mean of its divisors is an integer number (5127615).

Almost surely, 2^25979878 is an apocalyptic number.

25979878 is a deficient number, since it is larger than the sum of its proper divisors (15041042).

25979878 is a wasteful number, since it uses less digits than its factorization.

25979878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683702.

The product of its digits is 2540160, while the sum is 55.

The square root of 25979878 is about 5097.0460072477. The cubic root of 25979878 is about 296.1731623142.

The spelling of 25979878 in words is "twenty-five million, nine hundred seventy-nine thousand, eight hundred seventy-eight".