55648823 has 4 divisors (see below), whose sum is σ = 55894200. Its totient is φ = 55403448.

The previous prime is 55648787. The next prime is 55648843. The reversal of 55648823 is 32884655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32884655 = 5 ⋅6576931.

It is a cyclic number.

It is not a de Polignac number, because 55648823 - 2⁶ = 55648759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55648843) 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, 122348 + ... + 122801.

It is an arithmetic number, because the mean of its divisors is an integer number (13973550).

Almost surely, 2^55648823 is an apocalyptic number.

55648823 is a deficient number, since it is larger than the sum of its proper divisors (245377).

55648823 is a wasteful number, since it uses less digits than its factorization.

55648823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245376.

The product of its digits is 230400, while the sum is 41.

The square root of 55648823 is about 7459.8138716727. The cubic root of 55648823 is about 381.7848239479.

The spelling of 55648823 in words is "fifty-five million, six hundred forty-eight thousand, eight hundred twenty-three".