55000005511 has 16 divisors (see below), whose sum is σ = 60520471200. Its totient is φ = 49567950720.

The previous prime is 55000005499. The next prime is 55000005539. The reversal of 55000005511 is 11550000055.

It is a cyclic number.

It is not a de Polignac number, because 55000005511 - 2¹⁷ = 54999874439 is a prime.

It is a super-2 number, since 2×55000005511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000005551) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 622741 + ... + 705553.

It is an arithmetic number, because the mean of its divisors is an integer number (3782529450).

Almost surely, 2^55000005511 is an apocalyptic number.

55000005511 is a deficient number, since it is larger than the sum of its proper divisors (5520465689).

55000005511 is a wasteful number, since it uses less digits than its factorization.

55000005511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83346.

The product of its (nonzero) digits is 625, while the sum is 22.

Adding to 55000005511 its reverse (11550000055), we get a palindrome (66550005566).

The spelling of 55000005511 in words is "fifty-five billion, five thousand, five hundred eleven".