56213522 has 8 divisors (see below), whose sum is σ = 84378672. Its totient is φ = 28087300.

The previous prime is 56213497. The next prime is 56213527. The reversal of 56213522 is 22531265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 56213491 and 56213500.

It is not an unprimeable number, because it can be changed into a prime (56213527) 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, 5804 + ... + 12087.

It is an arithmetic number, because the mean of its divisors is an integer number (10547334).

Almost surely, 2^56213522 is an apocalyptic number.

56213522 is a deficient number, since it is larger than the sum of its proper divisors (28165150).

56213522 is a wasteful number, since it uses less digits than its factorization.

56213522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464.

The product of its digits is 3600, while the sum is 26.

The square root of 56213522 is about 7497.5677389404. The cubic root of 56213522 is about 383.0718732924.

Adding to 56213522 its reverse (22531265), we get a palindrome (78744787).

The spelling of 56213522 in words is "fifty-six million, two hundred thirteen thousand, five hundred twenty-two".