51021255353 has 2 divisors, whose sum is σ = 51021255354. Its totient is φ = 51021255352.

The previous prime is 51021255347. The next prime is 51021255371. The reversal of 51021255353 is 35355212015.

51021255353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50038558249 + 982697104 = 223693^2 + 31348^2 .

It is a cyclic number.

It is not a de Polignac number, because 51021255353 - 2¹⁰ = 51021254329 is a prime.

It is not a weakly prime, because it can be changed into another prime (51021255343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510627676 + 25510627677.

It is an arithmetic number, because the mean of its divisors is an integer number (25510627677).

Almost surely, 2^51021255353 is an apocalyptic number.

It is an amenable number.

51021255353 is a deficient number, since it is larger than the sum of its proper divisors (1).

51021255353 is an equidigital number, since it uses as much as digits as its factorization.

51021255353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 32.

Adding to 51021255353 its reverse (35355212015), we get a palindrome (86376467368).

It can be divided in two parts, 510212 and 55353, that added together give a palindrome (565565).

The spelling of 51021255353 in words is "fifty-one billion, twenty-one million, two hundred fifty-five thousand, three hundred fifty-three".