55116801 has 8 divisors (see below), whose sum is σ = 81654560. Its totient is φ = 36744516.

The previous prime is 55116781. The next prime is 55116827. The reversal of 55116801 is 10861155.

It is not a de Polignac number, because 55116801 - 2⁵ = 55116769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2041363 = 55116801 / (5 + 5 + 1 + 1 + 6 + 8 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55116851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020655 + ... + 1020708.

It is an arithmetic number, because the mean of its divisors is an integer number (10206820).

Almost surely, 2^55116801 is an apocalyptic number.

It is an amenable number.

55116801 is a deficient number, since it is larger than the sum of its proper divisors (26537759).

55116801 is a wasteful number, since it uses less digits than its factorization.

55116801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041372 (or 2041366 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 55116801 is about 7424.0690325454. The cubic root of 55116801 is about 380.5642609770.

Adding to 55116801 its reverse (10861155), we get a palindrome (65977956).

The spelling of 55116801 in words is "fifty-five million, one hundred sixteen thousand, eight hundred one".