51512233093 has 2 divisors, whose sum is σ = 51512233094. Its totient is φ = 51512233092.

The previous prime is 51512233081. The next prime is 51512233121. The reversal of 51512233093 is 39033221515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26050605604 + 25461627489 = 161402^2 + 159567^2 .

It is a cyclic number.

It is not a de Polignac number, because 51512233093 - 2¹³ = 51512224901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51512233393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25756116546 + 25756116547.

It is an arithmetic number, because the mean of its divisors is an integer number (25756116547).

Almost surely, 2^51512233093 is an apocalyptic number.

It is an amenable number.

51512233093 is a deficient number, since it is larger than the sum of its proper divisors (1).

51512233093 is an equidigital number, since it uses as much as digits as its factorization.

51512233093 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 51512233093 in words is "fifty-one billion, five hundred twelve million, two hundred thirty-three thousand, ninety-three".