56540222 has 8 divisors (see below), whose sum is σ = 84895536. Its totient is φ = 28241712.

The previous prime is 56540207. The next prime is 56540243. The reversal of 56540222 is 22204565.

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 = 56540191 and 56540200.

It is a congruent number.

It is an unprimeable number.

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, 11618 + ... + 15749.

It is an arithmetic number, because the mean of its divisors is an integer number (10611942).

Almost surely, 2^56540222 is an apocalyptic number.

56540222 is a deficient number, since it is larger than the sum of its proper divisors (28355314).

56540222 is a wasteful number, since it uses less digits than its factorization.

56540222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28402.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 56540222 is about 7519.3232408243. The cubic root of 56540222 is about 383.8125486645.

Adding to 56540222 its reverse (22204565), we get a palindrome (78744787).

The spelling of 56540222 in words is "fifty-six million, five hundred forty thousand, two hundred twenty-two".