25678122 has 8 divisors (see below), whose sum is σ = 51356256. Its totient is φ = 8559372.

The previous prime is 25678117. The next prime is 25678123. The reversal of 25678122 is 22187652.

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

25678122 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25678123) 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, 2139838 + ... + 2139849.

It is an arithmetic number, because the mean of its divisors is an integer number (6419532).

Almost surely, 2^25678122 is an apocalyptic number.

25678122 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.

25678122 is a wasteful number, since it uses less digits than its factorization.

25678122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279692.

The product of its digits is 13440, while the sum is 33.

The square root of 25678122 is about 5067.3584834705. The cubic root of 25678122 is about 295.0220111892.

The spelling of 25678122 in words is "twenty-five million, six hundred seventy-eight thousand, one hundred twenty-two".