51651115151 has 2 divisors, whose sum is σ = 51651115152. Its totient is φ = 51651115150.

The previous prime is 51651115129. The next prime is 51651115163. The reversal of 51651115151 is 15151115615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51651115151 - 2²² = 51646920847 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51651115121) 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, 25825557575 + 25825557576.

It is an arithmetic number, because the mean of its divisors is an integer number (25825557576).

Almost surely, 2^51651115151 is an apocalyptic number.

51651115151 is a deficient number, since it is larger than the sum of its proper divisors (1).

51651115151 is an equidigital number, since it uses as much as digits as its factorization.

51651115151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3750, while the sum is 32.

The spelling of 51651115151 in words is "fifty-one billion, six hundred fifty-one million, one hundred fifteen thousand, one hundred fifty-one".