51233195520019 has 2 divisors, whose sum is σ = 51233195520020. Its totient is φ = 51233195520018.

The previous prime is 51233195519971. The next prime is 51233195520049. The reversal of 51233195520019 is 91002559133215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51233195520019 - 2¹¹ = 51233195517971 is a prime.

It is a super-2 number, since 2×51233195520019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51233195520049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25616597760009 + 25616597760010.

It is an arithmetic number, because the mean of its divisors is an integer number (25616597760010).

Almost surely, 2^{51233195520019} is an apocalyptic number.

51233195520019 is a deficient number, since it is larger than the sum of its proper divisors (1).

51233195520019 is an equidigital number, since it uses as much as digits as its factorization.

51233195520019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 51233195520019 in words is "fifty-one trillion, two hundred thirty-three billion, one hundred ninety-five million, five hundred twenty thousand, nineteen".