18725995 has 4 divisors (see below), whose sum is σ = 22471200. Its totient is φ = 14980792.

The previous prime is 18725989. The next prime is 18726007. The reversal of 18725995 is 59952781.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18725995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872595 + ... + 1872604.

It is an arithmetic number, because the mean of its divisors is an integer number (5617800).

Almost surely, 2^18725995 is an apocalyptic number.

18725995 is a deficient number, since it is larger than the sum of its proper divisors (3745205).

18725995 is an equidigital number, since it uses as much as digits as its factorization.

18725995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745204.

The product of its digits is 226800, while the sum is 46.

The square root of 18725995 is about 4327.3542725319. The cubic root of 18725995 is about 265.5512200163.

The spelling of 18725995 in words is "eighteen million, seven hundred twenty-five thousand, nine hundred ninety-five".