5221549 has 2 divisors, whose sum is σ = 5221550. Its totient is φ = 5221548.

The previous prime is 5221543. The next prime is 5221577. The reversal of 5221549 is 9451225.

It is an a-pointer prime, because the next prime (5221577) can be obtained adding 5221549 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5221225 + 324 = 2285^2 + 18^2 .

It is a cyclic number.

It is not a de Polignac number, because 5221549 - 2¹³ = 5213357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5221543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2610774 + 2610775.

It is an arithmetic number, because the mean of its divisors is an integer number (2610775).

Almost surely, 2^5221549 is an apocalyptic number.

It is an amenable number.

5221549 is a deficient number, since it is larger than the sum of its proper divisors (1).

5221549 is an equidigital number, since it uses as much as digits as its factorization.

5221549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 28.

The square root of 5221549 is about 2285.0708960555. The cubic root of 5221549 is about 173.4868064613.

The spelling of 5221549 in words is "five million, two hundred twenty-one thousand, five hundred forty-nine".