55324172840537 has 2 divisors, whose sum is σ = 55324172840538. Its totient is φ = 55324172840536.

The previous prime is 55324172840513. The next prime is 55324172840597. The reversal of 55324172840537 is 73504827142355.

55324172840537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42392352705481 + 12931820135056 = 6510941^2 + 3596084^2 .

It is a cyclic number.

It is not a de Polignac number, because 55324172840537 - 2¹⁰ = 55324172839513 is a prime.

It is a super-2 number, since 2×55324172840537² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55324172840597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27662086420268 + 27662086420269.

It is an arithmetic number, because the mean of its divisors is an integer number (27662086420269).

Almost surely, 2^{55324172840537} is an apocalyptic number.

It is an amenable number.

55324172840537 is a deficient number, since it is larger than the sum of its proper divisors (1).

55324172840537 is an equidigital number, since it uses as much as digits as its factorization.

55324172840537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224000, while the sum is 56.

The spelling of 55324172840537 in words is "fifty-five trillion, three hundred twenty-four billion, one hundred seventy-two million, eight hundred forty thousand, five hundred thirty-seven".