2216554049 has 4 divisors (see below), whose sum is σ = 2216690736. Its totient is φ = 2216417364.

The previous prime is 2216554001. The next prime is 2216554057. The reversal of 2216554049 is 9404556122.

It is a happy number.

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-2216554049 is a prime.

It is a super-2 number, since 2×2216554049² = 9826223704276588802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216554069) 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, 40139 + ... + 77744.

It is an arithmetic number, because the mean of its divisors is an integer number (554172684).

Almost surely, 2^2216554049 is an apocalyptic number.

It is an amenable number.

2216554049 is a deficient number, since it is larger than the sum of its proper divisors (136687).

2216554049 is a wasteful number, since it uses less digits than its factorization.

2216554049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136686.

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 2216554049 is about 47080.2936375720. The cubic root of 2216554049 is about 1303.8454283220.

The spelling of 2216554049 in words is "two billion, two hundred sixteen million, five hundred fifty-four thousand, forty-nine".