54213311513 has 2 divisors, whose sum is σ = 54213311514. Its totient is φ = 54213311512.

The previous prime is 54213311497. The next prime is 54213311521. The reversal of 54213311513 is 31511331245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31553127424 + 22660184089 = 177632^2 + 150533^2 .

It is a cyclic number.

It is not a de Polignac number, because 54213311513 - 2⁴ = 54213311497 is a prime.

It is not a weakly prime, because it can be changed into another prime (54213311813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27106655756 + 27106655757.

It is an arithmetic number, because the mean of its divisors is an integer number (27106655757).

Almost surely, 2^54213311513 is an apocalyptic number.

It is an amenable number.

54213311513 is a deficient number, since it is larger than the sum of its proper divisors (1).

54213311513 is an equidigital number, since it uses as much as digits as its factorization.

54213311513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

Adding to 54213311513 its reverse (31511331245), we get a palindrome (85724642758).

The spelling of 54213311513 in words is "fifty-four billion, two hundred thirteen million, three hundred eleven thousand, five hundred thirteen".