56986213 has 4 divisors (see below), whose sum is σ = 57019168. Its totient is φ = 56953260.

The previous prime is 56986211. The next prime is 56986217. The reversal of 56986213 is 31268965.

56986213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56986213 - 2¹ = 56986211 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 (56986211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13731 + ... + 17392.

It is an arithmetic number, because the mean of its divisors is an integer number (14254792).

Almost surely, 2^56986213 is an apocalyptic number.

It is an amenable number.

56986213 is a deficient number, since it is larger than the sum of its proper divisors (32955).

56986213 is a wasteful number, since it uses less digits than its factorization.

56986213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32954.

The product of its digits is 77760, while the sum is 40.

The square root of 56986213 is about 7548.9213136712. The cubic root of 56986213 is about 384.8190818039.

It can be divided in two parts, 5698 and 6213, that added together give a palindrome (11911).

The spelling of 56986213 in words is "fifty-six million, nine hundred eighty-six thousand, two hundred thirteen".