20516052 has 12 divisors (see below), whose sum is σ = 47870816. Its totient is φ = 6838680.

The previous prime is 20516047. The next prime is 20516057. The reversal of 20516052 is 25061502.

It is an interprime number because it is at equal distance from previous prime (20516047) and next prime (20516057).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20516057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854824 + ... + 854847.

Almost surely, 2^20516052 is an apocalyptic number.

It is an amenable number.

20516052 is an abundant number, since it is smaller than the sum of its proper divisors (27354764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20516052 is a wasteful number, since it uses less digits than its factorization.

20516052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709678 (or 1709676 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 20516052 is about 4529.4648690546. The cubic root of 20516052 is about 273.7565991612.

Adding to 20516052 its reverse (25061502), we get a palindrome (45577554).

The spelling of 20516052 in words is "twenty million, five hundred sixteen thousand, fifty-two".