51030245801 has 2 divisors, whose sum is σ = 51030245802. Its totient is φ = 51030245800.

The previous prime is 51030245789. The next prime is 51030245899. The reversal of 51030245801 is 10854203015.

51030245801 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., 29001749401 + 22028496400 = 170299^2 + 148420^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51030245801 is a prime.

It is not a weakly prime, because it can be changed into another prime (51030245701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25515122900 + 25515122901.

It is an arithmetic number, because the mean of its divisors is an integer number (25515122901).

Almost surely, 2^51030245801 is an apocalyptic number.

It is an amenable number.

51030245801 is a deficient number, since it is larger than the sum of its proper divisors (1).

51030245801 is an equidigital number, since it uses as much as digits as its factorization.

51030245801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 51030245801 its reverse (10854203015), we get a palindrome (61884448816).

The spelling of 51030245801 in words is "fifty-one billion, thirty million, two hundred forty-five thousand, eight hundred one".