55604201 has 2 divisors, whose sum is σ = 55604202. Its totient is φ = 55604200.

The previous prime is 55604167. The next prime is 55604221. The reversal of 55604201 is 10240655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31584400 + 24019801 = 5620^2 + 4901^2 .

It is a cyclic number.

It is not a de Polignac number, because 55604201 - 2¹⁸ = 55342057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55604221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27802100 + 27802101.

It is an arithmetic number, because the mean of its divisors is an integer number (27802101).

Almost surely, 2^55604201 is an apocalyptic number.

It is an amenable number.

55604201 is a deficient number, since it is larger than the sum of its proper divisors (1).

55604201 is an equidigital number, since it uses as much as digits as its factorization.

55604201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55604201 is about 7456.8224465921. The cubic root of 55604201 is about 381.6827519605.

Adding to 55604201 its reverse (10240655), we get a palindrome (65844856).

The spelling of 55604201 in words is "fifty-five million, six hundred four thousand, two hundred one".