51549230507 has 2 divisors, whose sum is σ = 51549230508. Its totient is φ = 51549230506.

The previous prime is 51549230479. The next prime is 51549230527. The reversal of 51549230507 is 70503294515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51549230507 - 2²⁰ = 51548181931 is a prime.

It is not a weakly prime, because it can be changed into another prime (51549230527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25774615253 + 25774615254.

It is an arithmetic number, because the mean of its divisors is an integer number (25774615254).

Almost surely, 2^51549230507 is an apocalyptic number.

51549230507 is a deficient number, since it is larger than the sum of its proper divisors (1).

51549230507 is an equidigital number, since it uses as much as digits as its factorization.

51549230507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 41.

The spelling of 51549230507 in words is "fifty-one billion, five hundred forty-nine million, two hundred thirty thousand, five hundred seven".