56213 has 4 divisors (see below), whose sum is σ = 57120. Its totient is φ = 55308.

The previous prime is 56209. The next prime is 56237. The reversal of 56213 is 31265.

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 56213 - 2² = 56209 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 56191 and 56200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56263) 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, 353 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

2⁵⁶²¹³ is an apocalyptic number.

It is an amenable number.

56213 is a deficient number, since it is larger than the sum of its proper divisors (907).

56213 is an equidigital number, since it uses as much as digits as its factorization.

56213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its digits is 180, while the sum is 17.

The square root of 56213 is about 237.0928088323. The cubic root of 56213 is about 38.3070687551.

Adding to 56213 its reverse (31265), we get a palindrome (87478).

It can be divided in two parts, 562 and 13, that added together give a palindrome (575).

The spelling of 56213 in words is "fifty-six thousand, two hundred thirteen".