56100321 has 12 divisors (see below), whose sum is σ = 81214848. Its totient is φ = 37316664.

The previous prime is 56100307. The next prime is 56100347. The reversal of 56100321 is 12300165.

It is not a de Polignac number, because 56100321 - 2¹⁰ = 56099297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56100294 and 56100303.

It is not an unprimeable number, because it can be changed into a prime (56100371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2565 + ... + 10898.

It is an arithmetic number, because the mean of its divisors is an integer number (6767904).

Almost surely, 2^56100321 is an apocalyptic number.

It is an amenable number.

56100321 is a deficient number, since it is larger than the sum of its proper divisors (25114527).

56100321 is a wasteful number, since it uses less digits than its factorization.

56100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13932 (or 13929 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 56100321 is about 7490.0147529895. The cubic root of 56100321 is about 382.8145611806.

Adding to 56100321 its reverse (12300165), we get a palindrome (68400486).

The spelling of 56100321 in words is "fifty-six million, one hundred thousand, three hundred twenty-one".