20500052 has 18 divisors (see below), whose sum is σ = 37076634. Its totient is φ = 9917520.

The previous prime is 20500049. The next prime is 20500063. The reversal of 20500052 is 25000502.

It can be written as a sum of positive squares in only one way, i.e., 20484676 + 15376 = 4526^2 + 124^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1178 + ... + 6510.

It is an arithmetic number, because the mean of its divisors is an integer number (2059813).

Almost surely, 2^20500052 is an apocalyptic number.

It is an amenable number.

20500052 is a deficient number, since it is larger than the sum of its proper divisors (16576582).

20500052 is a wasteful number, since it uses less digits than its factorization.

20500052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399 (or 5366 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 20500052 is about 4527.6983115044. The cubic root of 20500052 is about 273.6854151483.

Adding to 20500052 its reverse (25000502), we get a palindrome (45500554).

The spelling of 20500052 in words is "twenty million, five hundred thousand, fifty-two".