55641323 has 4 divisors (see below), whose sum is σ = 58914360. Its totient is φ = 52368288.

The previous prime is 55641293. The next prime is 55641331. The reversal of 55641323 is 32314655.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55641323 - 2⁶ = 55641259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55647323) 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, 1636493 + ... + 1636526.

It is an arithmetic number, because the mean of its divisors is an integer number (14728590).

Almost surely, 2^55641323 is an apocalyptic number.

55641323 is a deficient number, since it is larger than the sum of its proper divisors (3273037).

55641323 is a wasteful number, since it uses less digits than its factorization.

55641323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273036.

The product of its digits is 10800, while the sum is 29.

The square root of 55641323 is about 7459.3111612266. The cubic root of 55641323 is about 381.7676716545.

Adding to 55641323 its reverse (32314655), we get a palindrome (87955978).

The spelling of 55641323 in words is "fifty-five million, six hundred forty-one thousand, three hundred twenty-three".