51055003393 has 2 divisors, whose sum is σ = 51055003394. Its totient is φ = 51055003392.

The previous prime is 51055003387. The next prime is 51055003421. The reversal of 51055003393 is 39330055015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49227184384 + 1827819009 = 221872^2 + 42753^2 .

It is a cyclic number.

It is not a de Polignac number, because 51055003393 - 2²¹ = 51052906241 is a prime.

It is a super-2 number, since 2×51055003393² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51055003093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527501696 + 25527501697.

It is an arithmetic number, because the mean of its divisors is an integer number (25527501697).

Almost surely, 2^51055003393 is an apocalyptic number.

It is an amenable number.

51055003393 is a deficient number, since it is larger than the sum of its proper divisors (1).

51055003393 is an equidigital number, since it uses as much as digits as its factorization.

51055003393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30375, while the sum is 34.

The spelling of 51055003393 in words is "fifty-one billion, fifty-five million, three thousand, three hundred ninety-three".