51033534109 has 2 divisors, whose sum is σ = 51033534110. Its totient is φ = 51033534108.

The previous prime is 51033534029. The next prime is 51033534127. The reversal of 51033534109 is 90143533015.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48126706884 + 2906827225 = 219378^2 + 53915^2 .

It is a cyclic number.

It is not a de Polignac number, because 51033534109 - 2⁹ = 51033533597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51033534809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516767054 + 25516767055.

It is an arithmetic number, because the mean of its divisors is an integer number (25516767055).

Almost surely, 2^51033534109 is an apocalyptic number.

It is an amenable number.

51033534109 is a deficient number, since it is larger than the sum of its proper divisors (1).

51033534109 is an equidigital number, since it uses as much as digits as its factorization.

51033534109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 51033534109 in words is "fifty-one billion, thirty-three million, five hundred thirty-four thousand, one hundred nine".