55415223 has 12 divisors (see below), whose sum is σ = 84752928. Its totient is φ = 34770240.

The previous prime is 55415221. The next prime is 55415251. The reversal of 55415223 is 32251455.

It is a happy number.

It is not a de Polignac number, because 55415223 - 2¹ = 55415221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55415221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180943 + ... + 181248.

It is an arithmetic number, because the mean of its divisors is an integer number (7062744).

Almost surely, 2^55415223 is an apocalyptic number.

55415223 is a deficient number, since it is larger than the sum of its proper divisors (29337705).

55415223 is a wasteful number, since it uses less digits than its factorization.

55415223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362214 (or 362211 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 55415223 is about 7444.1401786909. The cubic root of 55415223 is about 381.2498619367.

Adding to 55415223 its reverse (32251455), we get a palindrome (87666678).

The spelling of 55415223 in words is "fifty-five million, four hundred fifteen thousand, two hundred twenty-three".