51515032033 has 2 divisors, whose sum is σ = 51515032034. Its totient is φ = 51515032032.

The previous prime is 51515031943. The next prime is 51515032039. The reversal of 51515032033 is 33023051515.

51515032033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49209879889 + 2305152144 = 221833^2 + 48012^2 .

It is a cyclic number.

It is not a de Polignac number, because 51515032033 - 2²⁹ = 50978161121 is a prime.

It is a super-2 number, since 2×51515032033² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51515031992 and 51515032010.

It is not a weakly prime, because it can be changed into another prime (51515032039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25757516016 + 25757516017.

It is an arithmetic number, because the mean of its divisors is an integer number (25757516017).

Almost surely, 2^51515032033 is an apocalyptic number.

It is an amenable number.

51515032033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51515032033 is an equidigital number, since it uses as much as digits as its factorization.

51515032033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 51515032033 its reverse (33023051515), we get a palindrome (84538083548).

The spelling of 51515032033 in words is "fifty-one billion, five hundred fifteen million, thirty-two thousand, thirty-three".