55616323 has 24 divisors (see below), whose sum is σ = 68700960. Its totient is φ = 44795520.

The previous prime is 55616317. The next prime is 55616389. The reversal of 55616323 is 32361655.

It is not a de Polignac number, because 55616323 - 2²⁵ = 22061891 is a prime.

It is a Duffinian number.

Its product of digits (16200) is a multiple of the sum of its prime divisors (900).

It is not an unprimeable number, because it can be changed into a prime (55616303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68343 + ... + 69151.

It is an arithmetic number, because the mean of its divisors is an integer number (2862540).

Almost surely, 2^55616323 is an apocalyptic number.

55616323 is a deficient number, since it is larger than the sum of its proper divisors (13084637).

55616323 is a wasteful number, since it uses less digits than its factorization.

55616323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 900 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 55616323 is about 7457.6352149995. The cubic root of 55616323 is about 381.7104862087.

Adding to 55616323 its reverse (32361655), we get a palindrome (87977978).

The spelling of 55616323 in words is "fifty-five million, six hundred sixteen thousand, three hundred twenty-three".