52313445244421 has 2 divisors, whose sum is σ = 52313445244422. Its totient is φ = 52313445244420.

The previous prime is 52313445244397. The next prime is 52313445244427. The reversal of 52313445244421 is 12444254431325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43142420387521 + 9171024856900 = 6568289^2 + 3028370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52313445244421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52313445244427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26156722622210 + 26156722622211.

It is an arithmetic number, because the mean of its divisors is an integer number (26156722622211).

Almost surely, 2^{52313445244421} is an apocalyptic number.

It is an amenable number.

52313445244421 is a deficient number, since it is larger than the sum of its proper divisors (1).

52313445244421 is an equidigital number, since it uses as much as digits as its factorization.

52313445244421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1843200, while the sum is 44.

Adding to 52313445244421 its reverse (12444254431325), we get a palindrome (64757699675746).

The spelling of 52313445244421 in words is "fifty-two trillion, three hundred thirteen billion, four hundred forty-five million, two hundred forty-four thousand, four hundred twenty-one".