55180801 has 16 divisors (see below), whose sum is σ = 61765200. Its totient is φ = 48964608.

The previous prime is 55180799. The next prime is 55180843. The reversal of 55180801 is 10808155.

55180801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 65025 + 55115776 = 255^2 + 7424^2 .

It is a cyclic number.

It is not a de Polignac number, because 55180801 - 2¹ = 55180799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55180801.

It is not an unprimeable number, because it can be changed into a prime (55180201) 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, 42165 + ... + 43453.

It is an arithmetic number, because the mean of its divisors is an integer number (3860325).

Almost surely, 2^55180801 is an apocalyptic number.

It is an amenable number.

55180801 is a deficient number, since it is larger than the sum of its proper divisors (6584399).

55180801 is a wasteful number, since it uses less digits than its factorization.

55180801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 55180801 is about 7428.3780867697. The cubic root of 55180801 is about 380.7115039902.

Adding to 55180801 its reverse (10808155), we get a palindrome (65988956).

The spelling of 55180801 in words is "fifty-five million, one hundred eighty thousand, eight hundred one".