56622197 has 4 divisors (see below), whose sum is σ = 56715180. Its totient is φ = 56529216.

The previous prime is 56622191. The next prime is 56622217. The reversal of 56622197 is 79122665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79122665 = 5 ⋅15824533.

It can be written as a sum of positive squares in 2 ways, for example, as 12013156 + 44609041 = 3466^2 + 6679^2 .

It is a cyclic number.

It is not a de Polignac number, because 56622197 - 2⁶ = 56622133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56622197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56622191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45572 + ... + 46797.

It is an arithmetic number, because the mean of its divisors is an integer number (14178795).

Almost surely, 2^56622197 is an apocalyptic number.

It is an amenable number.

56622197 is a deficient number, since it is larger than the sum of its proper divisors (92983).

56622197 is an equidigital number, since it uses as much as digits as its factorization.

56622197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92982.

The product of its digits is 45360, while the sum is 38.

The square root of 56622197 is about 7524.7722224663. The cubic root of 56622197 is about 383.9979496599.

The spelling of 56622197 in words is "fifty-six million, six hundred twenty-two thousand, one hundred ninety-seven".