5545219 has 2 divisors, whose sum is σ = 5545220. Its totient is φ = 5545218.

The previous prime is 5545193. The next prime is 5545223. The reversal of 5545219 is 9125455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5545219 - 2⁷ = 5545091 is a prime.

It is a super-2 number, since 2×5545219² = 61498907515922, which contains 22 as substring.

It is an Ulam number.

5545219 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (5545229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772609 + 2772610.

It is an arithmetic number, because the mean of its divisors is an integer number (2772610).

Almost surely, 2^5545219 is an apocalyptic number.

5545219 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545219 is an equidigital number, since it uses as much as digits as its factorization.

5545219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 31.

The square root of 5545219 is about 2354.8288685168. The cubic root of 5545219 is about 176.9998510431. Note that the first 3 decimals are identical.

The spelling of 5545219 in words is "five million, five hundred forty-five thousand, two hundred nineteen".