5551106055081 has 4 divisors (see below), whose sum is σ = 7401474740112. Its totient is φ = 3700737370052.

The previous prime is 5551106055037. The next prime is 5551106055107. The reversal of 5551106055081 is 1805506011555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5551106055081 - 2¹⁸ = 5551105792937 is a prime.

It is a super-2 number, since 2×5551106055081² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5551106055281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925184342511 + ... + 925184342516.

It is an arithmetic number, because the mean of its divisors is an integer number (1850368685028).

Almost surely, 2^{5551106055081} is an apocalyptic number.

It is an amenable number.

5551106055081 is a deficient number, since it is larger than the sum of its proper divisors (1850368685031).

5551106055081 is a wasteful number, since it uses less digits than its factorization.

5551106055081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850368685030.

The product of its (nonzero) digits is 150000, while the sum is 42.

The spelling of 5551106055081 in words is "five trillion, five hundred fifty-one billion, one hundred six million, fifty-five thousand, eighty-one".