51035420201 has 2 divisors, whose sum is σ = 51035420202. Its totient is φ = 51035420200.

The previous prime is 51035420167. The next prime is 51035420243. The reversal of 51035420201 is 10202453015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46932889600 + 4102530601 = 216640^2 + 64051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51035420201 is a prime.

It is a super-2 number, since 2×51035420201² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51035422201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25517710100 + 25517710101.

It is an arithmetic number, because the mean of its divisors is an integer number (25517710101).

Almost surely, 2^51035420201 is an apocalyptic number.

It is an amenable number.

51035420201 is a deficient number, since it is larger than the sum of its proper divisors (1).

51035420201 is an equidigital number, since it uses as much as digits as its factorization.

51035420201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 51035420201 its reverse (10202453015), we get a palindrome (61237873216).

The spelling of 51035420201 in words is "fifty-one billion, thirty-five million, four hundred twenty thousand, two hundred one".