25345018 has 4 divisors (see below), whose sum is σ = 38017530. Its totient is φ = 12672508.

The previous prime is 25345003. The next prime is 25345027. The reversal of 25345018 is 81054352.

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

It can be written as a sum of positive squares in only one way, i.e., 20403289 + 4941729 = 4517^2 + 2223^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336253 + ... + 6336256.

Almost surely, 2^25345018 is an apocalyptic number.

25345018 is a deficient number, since it is larger than the sum of its proper divisors (12672512).

25345018 is a wasteful number, since it uses less digits than its factorization.

25345018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12672511.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 25345018 is about 5034.3835769635. The cubic root of 25345018 is about 293.7407513008.

The spelling of 25345018 in words is "twenty-five million, three hundred forty-five thousand, eighteen".