51611625311327 has 2 divisors, whose sum is σ = 51611625311328. Its totient is φ = 51611625311326.

The previous prime is 51611625311303. The next prime is 51611625311353. The reversal of 51611625311327 is 72311352611615.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51611625311327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611625311527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805812655663 + 25805812655664.

It is an arithmetic number, because the mean of its divisors is an integer number (25805812655664).

Almost surely, 2^{51611625311327} is an apocalyptic number.

51611625311327 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611625311327 is an equidigital number, since it uses as much as digits as its factorization.

51611625311327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The spelling of 51611625311327 in words is "fifty-one trillion, six hundred eleven billion, six hundred twenty-five million, three hundred eleven thousand, three hundred twenty-seven".