51200072051 has 2 divisors, whose sum is σ = 51200072052. Its totient is φ = 51200072050.

The previous prime is 51200072017. The next prime is 51200072057. The reversal of 51200072051 is 15027000215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51200072051 is a prime.

It is not a weakly prime, because it can be changed into another prime (51200072057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25600036025 + 25600036026.

It is an arithmetic number, because the mean of its divisors is an integer number (25600036026).

Almost surely, 2^51200072051 is an apocalyptic number.

51200072051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51200072051 is an equidigital number, since it uses as much as digits as its factorization.

51200072051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

Adding to 51200072051 its reverse (15027000215), we get a palindrome (66227072266).

The spelling of 51200072051 in words is "fifty-one billion, two hundred million, seventy-two thousand, fifty-one".