2195566 has 4 divisors (see below), whose sum is σ = 3293352. Its totient is φ = 1097782.

The previous prime is 2195563. The next prime is 2195579. The reversal of 2195566 is 6655912.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548890 + ... + 548893.

It is an arithmetic number, because the mean of its divisors is an integer number (823338).

2^2195566 is an apocalyptic number.

2195566 is a deficient number, since it is larger than the sum of its proper divisors (1097786).

2195566 is a wasteful number, since it uses less digits than its factorization.

2195566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097785.

The product of its digits is 16200, while the sum is 34.

The square root of 2195566 is about 1481.7442424386. The cubic root of 2195566 is about 129.9717098204.

The spelling of 2195566 in words is "two million, one hundred ninety-five thousand, five hundred sixty-six".