25969494 has 8 divisors (see below), whose sum is σ = 51939000. Its totient is φ = 8656496.

The previous prime is 25969487. The next prime is 25969543. The reversal of 25969494 is 49496952.

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

25969494 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2164119 + ... + 2164130.

It is an arithmetic number, because the mean of its divisors is an integer number (6492375).

Almost surely, 2^25969494 is an apocalyptic number.

25969494 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.

25969494 is a wasteful number, since it uses less digits than its factorization.

25969494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328254.

The product of its digits is 699840, while the sum is 48.

The square root of 25969494 is about 5096.0272762221. The cubic root of 25969494 is about 296.1336975156.

It can be divided in two parts, 2596 and 9494, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 25969494 in words is "twenty-five million, nine hundred sixty-nine thousand, four hundred ninety-four".