51555305467 has 2 divisors, whose sum is σ = 51555305468. Its totient is φ = 51555305466.

The previous prime is 51555305447. The next prime is 51555305507. The reversal of 51555305467 is 76450355515.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51555305467 is a prime.

It is not a weakly prime, because it can be changed into another prime (51555305447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25777652733 + 25777652734.

It is an arithmetic number, because the mean of its divisors is an integer number (25777652734).

Almost surely, 2^51555305467 is an apocalyptic number.

51555305467 is a deficient number, since it is larger than the sum of its proper divisors (1).

51555305467 is an equidigital number, since it uses as much as digits as its factorization.

51555305467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575000, while the sum is 46.

The spelling of 51555305467 in words is "fifty-one billion, five hundred fifty-five million, three hundred five thousand, four hundred sixty-seven".