55511055105 has 64 divisors (see below), whose sum is σ = 101178685440. Its totient is φ = 25725427200.

The previous prime is 55511055097. The next prime is 55511055109. The reversal of 55511055105 is 50155011555.

It is not a de Polignac number, because 55511055105 - 2³ = 55511055097 is a prime.

It is a super-2 number, since 2×55511055105² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55511055109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6101610 + ... + 6110700.

It is an arithmetic number, because the mean of its divisors is an integer number (1580916960).

Almost surely, 2^55511055105 is an apocalyptic number.

55511055105 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55511055105 is a deficient number, since it is larger than the sum of its proper divisors (45667630335).

55511055105 is a wasteful number, since it uses less digits than its factorization.

55511055105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742.

The product of its (nonzero) digits is 15625, while the sum is 33.

The spelling of 55511055105 in words is "fifty-five billion, five hundred eleven million, fifty-five thousand, one hundred five".