56002823 has 4 divisors (see below), whose sum is σ = 58950360. Its totient is φ = 53055288.

The previous prime is 56002789. The next prime is 56002831. The reversal of 56002823 is 32820065.

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 56002823 - 2⁶ = 56002759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56002792 and 56002801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56002123) 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, 1473740 + ... + 1473777.

It is an arithmetic number, because the mean of its divisors is an integer number (14737590).

Almost surely, 2^56002823 is an apocalyptic number.

56002823 is a deficient number, since it is larger than the sum of its proper divisors (2947537).

56002823 is a wasteful number, since it uses less digits than its factorization.

56002823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947536.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56002823 is about 7483.5033907923. The cubic root of 56002823 is about 382.5926652616.

Adding to 56002823 its reverse (32820065), we get a palindrome (88822888).

The spelling of 56002823 in words is "fifty-six million, two thousand, eight hundred twenty-three".