56123133 has 32 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 33116160.

The previous prime is 56123129. The next prime is 56123143. The reversal of 56123133 is 33132165.

It is a happy number.

It is not a de Polignac number, because 56123133 - 2² = 56123129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56123143) 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 31 ways as a sum of consecutive naturals, for example, 284791 + ... + 284987.

It is an arithmetic number, because the mean of its divisors is an integer number (2619540).

Almost surely, 2^56123133 is an apocalyptic number.

It is an amenable number.

56123133 is a deficient number, since it is larger than the sum of its proper divisors (27702147).

56123133 is a wasteful number, since it uses less digits than its factorization.

56123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397.

The product of its digits is 1620, while the sum is 24.

The square root of 56123133 is about 7491.5374256557. The cubic root of 56123133 is about 382.8664419436.

Adding to 56123133 its reverse (33132165), we get a palindrome (89255298).

The spelling of 56123133 in words is "fifty-six million, one hundred twenty-three thousand, one hundred thirty-three".