55516555101 has 32 divisors (see below), whose sum is σ = 87561365760. Its totient is φ = 30613169664.

The previous prime is 55516555097. The next prime is 55516555109. The reversal of 55516555101 is 10155561555.

It is not a de Polignac number, because 55516555101 - 2² = 55516555097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55516555101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55516555109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1141191 + ... + 1188843.

It is an arithmetic number, because the mean of its divisors is an integer number (2736292680).

Almost surely, 2^55516555101 is an apocalyptic number.

It is an amenable number.

55516555101 is a deficient number, since it is larger than the sum of its proper divisors (32044810659).

55516555101 is a wasteful number, since it uses less digits than its factorization.

55516555101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49605.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 55516555101 in words is "fifty-five billion, five hundred sixteen million, five hundred fifty-five thousand, one hundred one".