53420213533 has 2 divisors, whose sum is σ = 53420213534. Its totient is φ = 53420213532.

The previous prime is 53420213519. The next prime is 53420213549. The reversal of 53420213533 is 33531202435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32696595684 + 20723617849 = 180822^2 + 143957^2 .

It is a cyclic number.

It is not a de Polignac number, because 53420213533 - 2⁵ = 53420213501 is a prime.

It is a super-2 number, since 2×53420213533² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53420213495 and 53420213504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53420213233) 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, 26710106766 + 26710106767.

It is an arithmetic number, because the mean of its divisors is an integer number (26710106767).

Almost surely, 2^53420213533 is an apocalyptic number.

It is an amenable number.

53420213533 is a deficient number, since it is larger than the sum of its proper divisors (1).

53420213533 is an equidigital number, since it uses as much as digits as its factorization.

53420213533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 53420213533 its reverse (33531202435), we get a palindrome (86951415968).

The spelling of 53420213533 in words is "fifty-three billion, four hundred twenty million, two hundred thirteen thousand, five hundred thirty-three".