54820823 has 4 divisors (see below), whose sum is σ = 55353168. Its totient is φ = 54288480.

The previous prime is 54820819. The next prime is 54820849. The reversal of 54820823 is 32802845.

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 54820823 - 2² = 54820819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54820823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54820723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266018 + ... + 266223.

It is an arithmetic number, because the mean of its divisors is an integer number (13838292).

Almost surely, 2^54820823 is an apocalyptic number.

54820823 is a deficient number, since it is larger than the sum of its proper divisors (532345).

54820823 is a wasteful number, since it uses less digits than its factorization.

54820823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532344.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 54820823 is about 7404.1085216250. The cubic root of 54820823 is about 379.8818261345.

The spelling of 54820823 in words is "fifty-four million, eight hundred twenty thousand, eight hundred twenty-three".