55517141 has 2 divisors, whose sum is σ = 55517142. Its totient is φ = 55517140.

The previous prime is 55517093. The next prime is 55517149. The reversal of 55517141 is 14171555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55502500 + 14641 = 7450^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 55517141 - 2¹⁰ = 55516117 is a prime.

It is a super-3 number, since 3×55517141³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55517149) 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, 27758570 + 27758571.

It is an arithmetic number, because the mean of its divisors is an integer number (27758571).

Almost surely, 2^55517141 is an apocalyptic number.

It is an amenable number.

55517141 is a deficient number, since it is larger than the sum of its proper divisors (1).

55517141 is an equidigital number, since it uses as much as digits as its factorization.

55517141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3500, while the sum is 29.

The square root of 55517141 is about 7450.9825526571. The cubic root of 55517141 is about 381.4834465282.

Adding to 55517141 its reverse (14171555), we get a palindrome (69688696).

The spelling of 55517141 in words is "fifty-five million, five hundred seventeen thousand, one hundred forty-one".