25958798 has 4 divisors (see below), whose sum is σ = 38938200. Its totient is φ = 12979398.

The previous prime is 25958771. The next prime is 25958809. The reversal of 25958798 is 89785952.

It is a semiprime because it is the product of two primes.

It is a Curzon 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 as a sum of consecutive naturals, namely, 6489698 + ... + 6489701.

It is an arithmetic number, because the mean of its divisors is an integer number (9734550).

Almost surely, 2^25958798 is an apocalyptic number.

25958798 is a deficient number, since it is larger than the sum of its proper divisors (12979402).

25958798 is a wasteful number, since it uses less digits than its factorization.

25958798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12979401.

The product of its digits is 1814400, while the sum is 53.

The square root of 25958798 is about 5094.9777232094. The cubic root of 25958798 is about 296.0930359483.

The spelling of 25958798 in words is "twenty-five million, nine hundred fifty-eight thousand, seven hundred ninety-eight".