56321111 has 32 divisors (see below), whose sum is σ = 74718720. Its totient is φ = 41126400.

The previous prime is 56321107. The next prime is 56321113. The reversal of 56321111 is 11112365.

It is not a de Polignac number, because 56321111 - 2² = 56321107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56321113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200291 + ... + 200571.

It is an arithmetic number, because the mean of its divisors is an integer number (2334960).

Almost surely, 2^56321111 is an apocalyptic number.

56321111 is a deficient number, since it is larger than the sum of its proper divisors (18397609).

56321111 is a wasteful number, since it uses less digits than its factorization.

56321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its digits is 180, while the sum is 20.

The square root of 56321111 is about 7504.7392359762. The cubic root of 56321111 is about 383.3161090349.

Adding to 56321111 its reverse (11112365), we get a palindrome (67433476).

The spelling of 56321111 in words is "fifty-six million, three hundred twenty-one thousand, one hundred eleven".