55081641 has 8 divisors (see below), whose sum is σ = 75427264. Its totient is φ = 35728560.

The previous prime is 55081601. The next prime is 55081673. The reversal of 55081641 is 14618055.

55081641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55081641 - 2⁶ = 55081577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55081599 and 55081608.

It is not an unprimeable number, because it can be changed into a prime (55081601) 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 7 ways as a sum of consecutive naturals, for example, 248005 + ... + 248226.

It is an arithmetic number, because the mean of its divisors is an integer number (9428408).

Almost surely, 2^55081641 is an apocalyptic number.

It is an amenable number.

55081641 is a deficient number, since it is larger than the sum of its proper divisors (20345623).

55081641 is a wasteful number, since it uses less digits than its factorization.

55081641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496271.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 55081641 is about 7421.7006811108. The cubic root of 55081641 is about 380.4833208315.

Adding to 55081641 its reverse (14618055), we get a palindrome (69699696).

The spelling of 55081641 in words is "fifty-five million, eighty-one thousand, six hundred forty-one".