55537223 has 8 divisors (see below), whose sum is σ = 63516192. Its totient is φ = 47569536.

The previous prime is 55537189. The next prime is 55537241. The reversal of 55537223 is 32273555.

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

It is not a de Polignac number, because 55537223 - 2¹⁶ = 55471687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55537223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55537243) 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, 18011 + ... + 20867.

It is an arithmetic number, because the mean of its divisors is an integer number (7939524).

Almost surely, 2^55537223 is an apocalyptic number.

55537223 is a deficient number, since it is larger than the sum of its proper divisors (7978969).

55537223 is a wasteful number, since it uses less digits than its factorization.

55537223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5641.

The product of its digits is 31500, while the sum is 32.

The square root of 55537223 is about 7452.3300383169. The cubic root of 55537223 is about 381.5294384921.

The spelling of 55537223 in words is "fifty-five million, five hundred thirty-seven thousand, two hundred twenty-three".