20025118 has 4 divisors (see below), whose sum is σ = 30037680. Its totient is φ = 10012558.

The previous prime is 20025079. The next prime is 20025119. The reversal of 20025118 is 81152002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20025095 and 20025104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006278 + ... + 5006281.

It is an arithmetic number, because the mean of its divisors is an integer number (7509420).

Almost surely, 2^20025118 is an apocalyptic number.

20025118 is a deficient number, since it is larger than the sum of its proper divisors (10012562).

20025118 is a wasteful number, since it uses less digits than its factorization.

20025118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10012561.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 20025118 is about 4474.9433515968. The cubic root of 20025118 is about 271.5553486909. Note that the first 3 decimals are identical.

The spelling of 20025118 in words is "twenty million, twenty-five thousand, one hundred eighteen".