2222557 has 4 divisors (see below), whose sum is σ = 2232576. Its totient is φ = 2212540.

The previous prime is 2222543. The next prime is 2222567. The reversal of 2222557 is 7552222.

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 a de Polignac number, because none of the positive numbers 2^k-2222557 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 2¹¹ + 2¹² + 2¹⁸ + 5⁴ + 5⁹ + 7 .

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222527) 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, 4669 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (558144).

2^2222557 is an apocalyptic number.

It is an amenable number.

2222557 is a deficient number, since it is larger than the sum of its proper divisors (10019).

2222557 is an equidigital number, since it uses as much as digits as its factorization.

2222557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018.

The product of its digits is 2800, while the sum is 25.

The square root of 2222557 is about 1490.8242686514. The cubic root of 2222557 is about 130.5021407634.

Adding to 2222557 its reverse (7552222), we get a palindrome (9774779).

The spelling of 2222557 in words is "two million, two hundred twenty-two thousand, five hundred fifty-seven".