51332325487 has 2 divisors, whose sum is σ = 51332325488. Its totient is φ = 51332325486.

The previous prime is 51332325463. The next prime is 51332325523. The reversal of 51332325487 is 78452323315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51332325487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51332325427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25666162743 + 25666162744.

It is an arithmetic number, because the mean of its divisors is an integer number (25666162744).

Almost surely, 2^51332325487 is an apocalyptic number.

51332325487 is a deficient number, since it is larger than the sum of its proper divisors (1).

51332325487 is an equidigital number, since it uses as much as digits as its factorization.

51332325487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The spelling of 51332325487 in words is "fifty-one billion, three hundred thirty-two million, three hundred twenty-five thousand, four hundred eighty-seven".