20015093 has 8 divisors (see below), whose sum is σ = 23432640. Its totient is φ = 16737120.

The previous prime is 20015087. The next prime is 20015131. The reversal of 20015093 is 39051002.

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 20015093 - 2⁶ = 20015029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20015053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34583 + ... + 35156.

It is an arithmetic number, because the mean of its divisors is an integer number (2929080).

Almost surely, 2^20015093 is an apocalyptic number.

It is an amenable number.

20015093 is a deficient number, since it is larger than the sum of its proper divisors (3417547).

20015093 is an equidigital number, since it uses as much as digits as its factorization.

20015093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69787.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20015093 is about 4473.8230854606. The cubic root of 20015093 is about 271.5100256657.

Adding to 20015093 its reverse (39051002), we get a palindrome (59066095).

The spelling of 20015093 in words is "twenty million, fifteen thousand, ninety-three".