51520071467 has 2 divisors, whose sum is σ = 51520071468. Its totient is φ = 51520071466.

The previous prime is 51520071457. The next prime is 51520071523. The reversal of 51520071467 is 76417002515.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51520071467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51520071467.

It is not a weakly prime, because it can be changed into another prime (51520071457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25760035733 + 25760035734.

It is an arithmetic number, because the mean of its divisors is an integer number (25760035734).

Almost surely, 2^51520071467 is an apocalyptic number.

51520071467 is a deficient number, since it is larger than the sum of its proper divisors (1).

51520071467 is an equidigital number, since it uses as much as digits as its factorization.

51520071467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 51520071467 in words is "fifty-one billion, five hundred twenty million, seventy-one thousand, four hundred sixty-seven".