51212555353 has 2 divisors, whose sum is σ = 51212555354. Its totient is φ = 51212555352.

The previous prime is 51212555321. The next prime is 51212555357. The reversal of 51212555353 is 35355521215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27295004944 + 23917550409 = 165212^2 + 154653^2 .

It is a cyclic number.

It is not a de Polignac number, because 51212555353 - 2⁵ = 51212555321 is a prime.

It is not a weakly prime, because it can be changed into another prime (51212555357) 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, 25606277676 + 25606277677.

It is an arithmetic number, because the mean of its divisors is an integer number (25606277677).

Almost surely, 2^51212555353 is an apocalyptic number.

It is an amenable number.

51212555353 is a deficient number, since it is larger than the sum of its proper divisors (1).

51212555353 is an equidigital number, since it uses as much as digits as its factorization.

51212555353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112500, while the sum is 37.

The spelling of 51212555353 in words is "fifty-one billion, two hundred twelve million, five hundred fifty-five thousand, three hundred fifty-three".