20012050537 has 2 divisors, whose sum is σ = 20012050538. Its totient is φ = 20012050536.

The previous prime is 20012050517. The next prime is 20012050577. The reversal of 20012050537 is 73505021002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20010648681 + 1401856 = 141459^2 + 1184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012050537 is a prime.

It is not a weakly prime, because it can be changed into another prime (20012050517) 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 as a sum of consecutive naturals, namely, 10006025268 + 10006025269.

It is an arithmetic number, because the mean of its divisors is an integer number (10006025269).

Almost surely, 2^20012050537 is an apocalyptic number.

It is an amenable number.

20012050537 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012050537 is an equidigital number, since it uses as much as digits as its factorization.

20012050537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

Adding to 20012050537 its reverse (73505021002), we get a palindrome (93517071539).

The spelling of 20012050537 in words is "twenty billion, twelve million, fifty thousand, five hundred thirty-seven".