25679958 has 16 divisors (see below), whose sum is σ = 51420096. Its totient is φ = 8549960.

The previous prime is 25679923. The next prime is 25679959. The reversal of 25679958 is 85997652.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25679958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25679959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4585 + ... + 8507.

It is an arithmetic number, because the mean of its divisors is an integer number (3213756).

Almost surely, 2^25679958 is an apocalyptic number.

25679958 is an abundant number, since it is smaller than the sum of its proper divisors (25740138).

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

25679958 is a wasteful number, since it uses less digits than its factorization.

25679958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5019.

The product of its digits is 1360800, while the sum is 51.

The square root of 25679958 is about 5067.5396397068. The cubic root of 25679958 is about 295.0290424342.

The spelling of 25679958 in words is "twenty-five million, six hundred seventy-nine thousand, nine hundred fifty-eight".