25973198 has 4 divisors (see below), whose sum is σ = 38959800. Its totient is φ = 12986598.

The previous prime is 25973197. The next prime is 25973203. The reversal of 25973198 is 89137952.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25973197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6493298 + ... + 6493301.

It is an arithmetic number, because the mean of its divisors is an integer number (9739950).

Almost surely, 2^25973198 is an apocalyptic number.

25973198 is a deficient number, since it is larger than the sum of its proper divisors (12986602).

25973198 is a wasteful number, since it uses less digits than its factorization.

25973198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12986601.

The product of its digits is 136080, while the sum is 44.

The square root of 25973198 is about 5096.3906836113. The cubic root of 25973198 is about 296.1477759194.

The spelling of 25973198 in words is "twenty-five million, nine hundred seventy-three thousand, one hundred ninety-eight".