55140005533 has 2 divisors, whose sum is σ = 55140005534. Its totient is φ = 55140005532.

The previous prime is 55140005491. The next prime is 55140005561. The reversal of 55140005533 is 33550004155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54569894404 + 570111129 = 233602^2 + 23877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55140005533 is a prime.

It is a super-2 number, since 2×55140005533² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55140005495 and 55140005504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55140005633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27570002766 + 27570002767.

It is an arithmetic number, because the mean of its divisors is an integer number (27570002767).

Almost surely, 2^55140005533 is an apocalyptic number.

It is an amenable number.

55140005533 is a deficient number, since it is larger than the sum of its proper divisors (1).

55140005533 is an equidigital number, since it uses as much as digits as its factorization.

55140005533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 31.

Adding to 55140005533 its reverse (33550004155), we get a palindrome (88690009688).

The spelling of 55140005533 in words is "fifty-five billion, one hundred forty million, five thousand, five hundred thirty-three".