56081823 has 12 divisors (see below), whose sum is σ = 86984280. Its totient is φ = 32046672.

The previous prime is 56081819. The next prime is 56081833. The reversal of 56081823 is 32818065.

It is a happy number.

It is not a de Polignac number, because 56081823 - 2² = 56081819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56081833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190608 + ... + 190901.

It is an arithmetic number, because the mean of its divisors is an integer number (7248690).

Almost surely, 2^56081823 is an apocalyptic number.

56081823 is a deficient number, since it is larger than the sum of its proper divisors (30902457).

56081823 is a wasteful number, since it uses less digits than its factorization.

56081823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381526 (or 381519 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 56081823 is about 7488.7798071515. The cubic root of 56081823 is about 382.7724813132.

Adding to 56081823 its reverse (32818065), we get a palindrome (88899888).

The spelling of 56081823 in words is "fifty-six million, eighty-one thousand, eight hundred twenty-three".