25612878 has 8 divisors (see below), whose sum is σ = 51225768. Its totient is φ = 8537624.

The previous prime is 25612859. The next prime is 25612883. The reversal of 25612878 is 87821652.

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

25612878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2134401 + ... + 2134412.

It is an arithmetic number, because the mean of its divisors is an integer number (6403221).

Almost surely, 2^25612878 is an apocalyptic number.

25612878 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.

25612878 is a wasteful number, since it uses less digits than its factorization.

25612878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268818.

The product of its digits is 53760, while the sum is 39.

The square root of 25612878 is about 5060.9167153787. The cubic root of 25612878 is about 294.7719313543.

The spelling of 25612878 in words is "twenty-five million, six hundred twelve thousand, eight hundred seventy-eight".