51565433151 has 8 divisors (see below), whose sum is σ = 69255764784. Its totient is φ = 34126028480.

The previous prime is 51565433147. The next prime is 51565433159. The reversal of 51565433151 is 15133456515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51565433151 - 2² = 51565433147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51565433159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62731260 + ... + 62732081.

It is an arithmetic number, because the mean of its divisors is an integer number (8656970598).

Almost surely, 2^51565433151 is an apocalyptic number.

51565433151 is a deficient number, since it is larger than the sum of its proper divisors (17690331633).

51565433151 is a wasteful number, since it uses less digits than its factorization.

51565433151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125463481.

The product of its digits is 135000, while the sum is 39.

Adding to 51565433151 its reverse (15133456515), we get a palindrome (66698889666).

The spelling of 51565433151 in words is "fifty-one billion, five hundred sixty-five million, four hundred thirty-three thousand, one hundred fifty-one".