55500011011 has 4 divisors (see below), whose sum is σ = 57913054992. Its totient is φ = 53086967032.

The previous prime is 55500011003. The next prime is 55500011023. The reversal of 55500011011 is 11011000555.

It is a happy number.

55500011011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55500011011 - 2³ = 55500011003 is a prime.

It is a super-2 number, since 2×55500011011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55500011011.

It is not an unprimeable number, because it can be changed into a prime (55500011041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206521956 + ... + 1206522001.

It is an arithmetic number, because the mean of its divisors is an integer number (14478263748).

Almost surely, 2^55500011011 is an apocalyptic number.

55500011011 is a deficient number, since it is larger than the sum of its proper divisors (2413043981).

55500011011 is a wasteful number, since it uses less digits than its factorization.

55500011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413043980.

The product of its (nonzero) digits is 125, while the sum is 19.

Adding to 55500011011 its reverse (11011000555), we get a palindrome (66511011566).

The spelling of 55500011011 in words is "fifty-five billion, five hundred million, eleven thousand, eleven".