20585361 has 8 divisors (see below), whose sum is σ = 27485920. Its totient is φ = 13704192.

The previous prime is 20585329. The next prime is 20585381. The reversal of 20585361 is 16358502.

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

It is not a de Polignac number, because 20585361 - 2⁵ = 20585329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20585381) 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, 2155 + ... + 6768.

It is an arithmetic number, because the mean of its divisors is an integer number (3435740).

Almost surely, 2^20585361 is an apocalyptic number.

It is an amenable number.

20585361 is a deficient number, since it is larger than the sum of its proper divisors (6900559).

20585361 is an equidigital number, since it uses as much as digits as its factorization.

20585361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9695.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 20585361 is about 4537.1093220243. The cubic root of 20585361 is about 274.0645282869.

The spelling of 20585361 in words is "twenty million, five hundred eighty-five thousand, three hundred sixty-one".