5521819 has 2 divisors, whose sum is σ = 5521820. Its totient is φ = 5521818.

The previous prime is 5521807. The next prime is 5521891. The reversal of 5521819 is 9181255.

Together with next prime (5521891) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5521819 - 2¹⁷ = 5390747 is a prime.

It is a super-2 number, since 2×5521819² = 60980970137522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5522819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760909 + 2760910.

It is an arithmetic number, because the mean of its divisors is an integer number (2760910).

Almost surely, 2^5521819 is an apocalyptic number.

5521819 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521819 is an equidigital number, since it uses as much as digits as its factorization.

5521819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 31.

The square root of 5521819 is about 2349.8551019159. The cubic root of 5521819 is about 176.7505289915.

The spelling of 5521819 in words is "five million, five hundred twenty-one thousand, eight hundred nineteen".