2216572049 has 4 divisors (see below), whose sum is σ = 2217210480. Its totient is φ = 2215933620.

The previous prime is 2216572037. The next prime is 2216572087. The reversal of 2216572049 is 9402756122.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9402756122 = 2 ⋅4701378061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2216572049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216572009) 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, 313979 + ... + 320960.

It is an arithmetic number, because the mean of its divisors is an integer number (554302620).

Almost surely, 2^2216572049 is an apocalyptic number.

It is an amenable number.

2216572049 is a deficient number, since it is larger than the sum of its proper divisors (638431).

2216572049 is an equidigital number, since it uses as much as digits as its factorization.

2216572049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638430.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2216572049 is about 47080.4847999678. The cubic root of 2216572049 is about 1303.8489576974.

The spelling of 2216572049 in words is "two billion, two hundred sixteen million, five hundred seventy-two thousand, forty-nine".