55235223 has 16 divisors (see below), whose sum is σ = 86137600. Its totient is φ = 34885080.

The previous prime is 55235209. The next prime is 55235251. The reversal of 55235223 is 32253255.

It is not a de Polignac number, because 55235223 - 2¹⁰ = 55234199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55235203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53323 + ... + 54348.

It is an arithmetic number, because the mean of its divisors is an integer number (5383600).

Almost surely, 2^55235223 is an apocalyptic number.

55235223 is a deficient number, since it is larger than the sum of its proper divisors (30902377).

55235223 is a wasteful number, since it uses less digits than its factorization.

55235223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107699 (or 107693 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 55235223 is about 7432.0402985990. The cubic root of 55235223 is about 380.8366216244.

Adding to 55235223 its reverse (32253255), we get a palindrome (87488478).

The spelling of 55235223 in words is "fifty-five million, two hundred thirty-five thousand, two hundred twenty-three".