55132201 has 4 divisors (see below), whose sum is σ = 55209600. Its totient is φ = 55054804.

The previous prime is 55132193. The next prime is 55132213. The reversal of 55132201 is 10223155.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55132201 - 2³ = 55132193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55132271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37621 + ... + 39058.

It is an arithmetic number, because the mean of its divisors is an integer number (13802400).

Almost surely, 2^55132201 is an apocalyptic number.

It is an amenable number.

55132201 is a deficient number, since it is larger than the sum of its proper divisors (77399).

55132201 is an equidigital number, since it uses as much as digits as its factorization.

55132201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77398.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 55132201 is about 7425.1061271877. The cubic root of 55132201 is about 380.5997017365.

Adding to 55132201 its reverse (10223155), we get a palindrome (65355356).

The spelling of 55132201 in words is "fifty-five million, one hundred thirty-two thousand, two hundred one".