56444213 has 4 divisors (see below), whose sum is σ = 64507680. Its totient is φ = 48380748.

The previous prime is 56444207. The next prime is 56444263. The reversal of 56444213 is 31244465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56444213 - 2⁴ = 56444197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56444263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031723 + ... + 4031736.

It is an arithmetic number, because the mean of its divisors is an integer number (16126920).

Almost surely, 2^56444213 is an apocalyptic number.

It is an amenable number.

56444213 is a deficient number, since it is larger than the sum of its proper divisors (8063467).

56444213 is an equidigital number, since it uses as much as digits as its factorization.

56444213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8063466.

The product of its digits is 11520, while the sum is 29.

The square root of 56444213 is about 7512.9363766772. The cubic root of 56444213 is about 383.5951793005.

Adding to 56444213 its reverse (31244465), we get a palindrome (87688678).

The spelling of 56444213 in words is "fifty-six million, four hundred forty-four thousand, two hundred thirteen".