55203316060565 has 4 divisors (see below), whose sum is σ = 66243979272684. Its totient is φ = 44162652848448.

The previous prime is 55203316060553. The next prime is 55203316060699. The reversal of 55203316060565 is 56506061330255.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37540141254001 + 17663174806564 = 6127001^2 + 4202758^2 .

It is a cyclic number.

It is not a de Polignac number, because 55203316060565 - 2⁴ = 55203316060549 is a prime.

It is a super-2 number, since 2×55203316060565² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520331606052 + ... + 5520331606061.

It is an arithmetic number, because the mean of its divisors is an integer number (16560994818171).

Almost surely, 2^{55203316060565} is an apocalyptic number.

It is an amenable number.

55203316060565 is a deficient number, since it is larger than the sum of its proper divisors (11040663212119).

55203316060565 is a wasteful number, since it uses less digits than its factorization.

55203316060565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11040663212118.

The product of its (nonzero) digits is 2430000, while the sum is 47.

The spelling of 55203316060565 in words is "fifty-five trillion, two hundred three billion, three hundred sixteen million, sixty thousand, five hundred sixty-five".