55166201 has 8 divisors (see below), whose sum is σ = 55805544. Its totient is φ = 54530560.

The previous prime is 55166191. The next prime is 55166227. The reversal of 55166201 is 10266155.

It can be written as a sum of positive squares in 4 ways, for example, as 23232400 + 31933801 = 4820^2 + 5651^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55166201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55166231) 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, 37781 + ... + 39213.

It is an arithmetic number, because the mean of its divisors is an integer number (6975693).

Almost surely, 2^55166201 is an apocalyptic number.

It is an amenable number.

55166201 is a deficient number, since it is larger than the sum of its proper divisors (639343).

55166201 is a wasteful number, since it uses less digits than its factorization.

55166201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 55166201 is about 7427.3953038734. The cubic root of 55166201 is about 380.6779242055.

The spelling of 55166201 in words is "fifty-five million, one hundred sixty-six thousand, two hundred one".