55011081 has 16 divisors (see below), whose sum is σ = 76963328. Its totient is φ = 34905600.

The previous prime is 55011079. The next prime is 55011091. The reversal of 55011081 is 18011055.

55011081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55011081 - 2¹ = 55011079 is a prime.

It is a super-3 number, since 3×55011081³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55011041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825 + ... + 10521.

It is an arithmetic number, because the mean of its divisors is an integer number (4810208).

Almost surely, 2^55011081 is an apocalyptic number.

It is an amenable number.

55011081 is a deficient number, since it is larger than the sum of its proper divisors (21952247).

55011081 is a wasteful number, since it uses less digits than its factorization.

55011081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9792.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 55011081 is about 7416.9455303379. The cubic root of 55011081 is about 380.3207840679.

The spelling of 55011081 in words is "fifty-five million, eleven thousand, eighty-one".