55041223 has 4 divisors (see below), whose sum is σ = 58278960. Its totient is φ = 51803488.

The previous prime is 55041221. The next prime is 55041241. The reversal of 55041223 is 32214055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32214055 = 5 ⋅6442811.

It is not a de Polignac number, because 55041223 - 2¹ = 55041221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55041194 and 55041203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55041221) 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, 1618843 + ... + 1618876.

It is an arithmetic number, because the mean of its divisors is an integer number (14569740).

Almost surely, 2^55041223 is an apocalyptic number.

55041223 is a deficient number, since it is larger than the sum of its proper divisors (3237737).

55041223 is a wasteful number, since it uses less digits than its factorization.

55041223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3237736.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 55041223 is about 7418.9772206147. The cubic root of 55041223 is about 380.3902339301.

Adding to 55041223 its reverse (32214055), we get a palindrome (87255278).

The spelling of 55041223 in words is "fifty-five million, forty-one thousand, two hundred twenty-three".