20516050 has 24 divisors (see below), whose sum is σ = 39478500. Its totient is φ = 7922880.

The previous prime is 20516047. The next prime is 20516057. The reversal of 20516050 is 5061502.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 13024881 + 7491169 = 3609^2 + 2737^2 .

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 11 ways as a sum of consecutive naturals, for example, 5625 + ... + 8524.

Almost surely, 2^20516050 is an apocalyptic number.

20516050 is a deficient number, since it is larger than the sum of its proper divisors (18962450).

20516050 is a wasteful number, since it uses less digits than its factorization.

20516050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14190 (or 14185 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 20516050 is about 4529.4646482780. The cubic root of 20516050 is about 273.7565902655.

Adding to 20516050 its reverse (5061502), we get a palindrome (25577552).

The spelling of 20516050 in words is "twenty million, five hundred sixteen thousand, fifty".