55116201 has 8 divisors (see below), whose sum is σ = 83986624. Its totient is φ = 31494960.

The previous prime is 55116197. The next prime is 55116203. The reversal of 55116201 is 10261155.

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

It is not a de Polignac number, because 55116201 - 2² = 55116197 is a prime.

It is a super-2 number, since 2×55116201² = 6075591225344802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2624581 = 55116201 / (5 + 5 + 1 + 1 + 6 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55116203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1312270 + ... + 1312311.

It is an arithmetic number, because the mean of its divisors is an integer number (10498328).

Almost surely, 2^55116201 is an apocalyptic number.

It is an amenable number.

55116201 is a deficient number, since it is larger than the sum of its proper divisors (28870423).

55116201 is a wasteful number, since it uses less digits than its factorization.

55116201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624591.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 55116201 is about 7424.0286233284. The cubic root of 55116201 is about 380.5628800346.

Adding to 55116201 its reverse (10261155), we get a palindrome (65377356).

The spelling of 55116201 in words is "fifty-five million, one hundred sixteen thousand, two hundred one".