50521650737 has 2 divisors, whose sum is σ = 50521650738. Its totient is φ = 50521650736.

The previous prime is 50521650691. The next prime is 50521650797. The reversal of 50521650737 is 73705612505.

50521650737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50408781361 + 112869376 = 224519^2 + 10624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50521650737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50521650694 and 50521650703.

It is not a weakly prime, because it can be changed into another prime (50521650797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25260825368 + 25260825369.

It is an arithmetic number, because the mean of its divisors is an integer number (25260825369).

Almost surely, 2^50521650737 is an apocalyptic number.

It is an amenable number.

50521650737 is a deficient number, since it is larger than the sum of its proper divisors (1).

50521650737 is an equidigital number, since it uses as much as digits as its factorization.

50521650737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220500, while the sum is 41.

The spelling of 50521650737 in words is "fifty billion, five hundred twenty-one million, six hundred fifty thousand, seven hundred thirty-seven".