20051703 has 12 divisors (see below), whose sum is σ = 33101328. Its totient is φ = 11458080.

The previous prime is 20051683. The next prime is 20051711. The reversal of 20051703 is 30715002.

It is not a de Polignac number, because 20051703 - 2⁶ = 20051639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20051303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159078 + ... + 159203.

It is an arithmetic number, because the mean of its divisors is an integer number (2758444).

Almost surely, 2^20051703 is an apocalyptic number.

20051703 is a deficient number, since it is larger than the sum of its proper divisors (13049625).

20051703 is a wasteful number, since it uses less digits than its factorization.

20051703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318294 (or 318291 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 20051703 is about 4477.9127950419. The cubic root of 20051703 is about 271.6754662779.

Adding to 20051703 its reverse (30715002), we get a palindrome (50766705).

The spelling of 20051703 in words is "twenty million, fifty-one thousand, seven hundred three".