20053705 has 8 divisors (see below), whose sum is σ = 27502272. Its totient is φ = 13751088.

The previous prime is 20053699. The next prime is 20053717. The reversal of 20053705 is 50735002.

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 20053705 - 2⁵ = 20053673 is a prime.

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, 286447 + ... + 286516.

It is an arithmetic number, because the mean of its divisors is an integer number (3437784).

Almost surely, 2^20053705 is an apocalyptic number.

It is an amenable number.

20053705 is a deficient number, since it is larger than the sum of its proper divisors (7448567).

20053705 is an equidigital number, since it uses as much as digits as its factorization.

20053705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572975.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 20053705 is about 4478.1363311092. The cubic root of 20053705 is about 271.6845075080.

Adding to 20053705 its reverse (50735002), we get a palindrome (70788707).

The spelling of 20053705 in words is "twenty million, fifty-three thousand, seven hundred five".