55106154009 has 15 divisors (see below), whose sum is σ = 82322225733. Its totient is φ = 36736027524.

The previous prime is 55106153911. The next prime is 55106154013. The reversal of 55106154009 is 90045160155.

The square root of 55106154009 is 234747.

It is a perfect power (a square), and thus also a powerful number.

55106154009 is a `hidden beast` number, since 5 + 5 + 106 + 1 + 540 + 0 + 9 = 666.

It is not a de Polignac number, because 55106154009 - 2⁷ = 55106153881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55106150009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2099682 + ... + 2125764.

Almost surely, 2^55106154009 is an apocalyptic number.

55106154009 is the 234747-th square number.

55106154009 is the 117374-th centered octagonal number.

It is an amenable number.

55106154009 is a deficient number, since it is larger than the sum of its proper divisors (27216071724).

55106154009 is an frugal number, since it uses more digits than its factorization.

55106154009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52178 (or 26086 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

Multiplying 55106154009 by its sum of digits (36), we get a square (1983821544324 = 1408482²).

The spelling of 55106154009 in words is "fifty-five billion, one hundred six million, one hundred fifty-four thousand, nine".