56456311 has 4 divisors (see below), whose sum is σ = 56471400. Its totient is φ = 56441224.

The previous prime is 56456297. The next prime is 56456321. The reversal of 56456311 is 11365465.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 56456311 - 2⁹ = 56455799 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 (56456321) 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 3 ways as a sum of consecutive naturals, for example, 2760 + ... + 10978.

It is an arithmetic number, because the mean of its divisors is an integer number (14117850).

Almost surely, 2^56456311 is an apocalyptic number.

56456311 is a deficient number, since it is larger than the sum of its proper divisors (15089).

56456311 is an equidigital number, since it uses as much as digits as its factorization.

56456311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15088.

The product of its digits is 10800, while the sum is 31.

The square root of 56456311 is about 7513.7414781186. The cubic root of 56456311 is about 383.6225833674.

The spelling of 56456311 in words is "fifty-six million, four hundred fifty-six thousand, three hundred eleven".