20019085 has 8 divisors (see below), whose sum is σ = 25067520. Its totient is φ = 15318864.

The previous prime is 20019073. The next prime is 20019091. The reversal of 20019085 is 58091002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20019085 - 2⁵ = 20019053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86925 + ... + 87154.

It is an arithmetic number, because the mean of its divisors is an integer number (3133440).

Almost surely, 2^20019085 is an apocalyptic number.

It is an amenable number.

20019085 is a deficient number, since it is larger than the sum of its proper divisors (5048435).

20019085 is a wasteful number, since it uses less digits than its factorization.

20019085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174107.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 20019085 is about 4474.2692140728. The cubic root of 20019085 is about 271.5280753107.

The spelling of 20019085 in words is "twenty million, nineteen thousand, eighty-five".