2216523433 has 2 divisors, whose sum is σ = 2216523434. Its totient is φ = 2216523432.

The previous prime is 2216523367. The next prime is 2216523457. The reversal of 2216523433 is 3343256122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1706350864 + 510172569 = 41308^2 + 22587^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216523433 - 2⁹ = 2216522921 is a prime.

It is a super-2 number, since 2×2216523433² = 9825952258076210978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2216523395 and 2216523404.

It is not a weakly prime, because it can be changed into another prime (2216523473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108261716 + 1108261717.

It is an arithmetic number, because the mean of its divisors is an integer number (1108261717).

Almost surely, 2^2216523433 is an apocalyptic number.

It is an amenable number.

2216523433 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216523433 is an equidigital number, since it uses as much as digits as its factorization.

2216523433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 31.

The square root of 2216523433 is about 47079.9684897940. The cubic root of 2216523433 is about 1303.8394252026.

Adding to 2216523433 its reverse (3343256122), we get a palindrome (5559779555).

The spelling of 2216523433 in words is "two billion, two hundred sixteen million, five hundred twenty-three thousand, four hundred thirty-three".