5521669 has 2 divisors, whose sum is σ = 5521670. Its totient is φ = 5521668.

The previous prime is 5521667. The next prime is 5521693. The reversal of 5521669 is 9661255.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4571044 + 950625 = 2138^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521669 - 2¹ = 5521667 is a prime.

It is a super-2 number, since 2×5521669² = 60977657091122, which contains 22 as substring.

Together with 5521667, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5521661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760834 + 2760835.

It is an arithmetic number, because the mean of its divisors is an integer number (2760835).

Almost surely, 2^5521669 is an apocalyptic number.

It is an amenable number.

5521669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521669 is an equidigital number, since it uses as much as digits as its factorization.

5521669 is an odious number, because the sum of its binary digits is odd.

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

The square root of 5521669 is about 2349.8231848375. The cubic root of 5521669 is about 176.7489285032.

The spelling of 5521669 in words is "five million, five hundred twenty-one thousand, six hundred sixty-nine".