5541421 has 2 divisors, whose sum is σ = 5541422. Its totient is φ = 5541420.

The previous prime is 5541397. The next prime is 5541427. The reversal of 5541421 is 1241455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3200521 + 2340900 = 1789^2 + 1530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5541421 is a prime.

5541421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5541392 and 5541401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5541427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2770710 + 2770711.

It is an arithmetic number, because the mean of its divisors is an integer number (2770711).

Almost surely, 2^5541421 is an apocalyptic number.

It is an amenable number.

5541421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5541421 is an equidigital number, since it uses as much as digits as its factorization.

5541421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 800, while the sum is 22.

The square root of 5541421 is about 2354.0223023582. The cubic root of 5541421 is about 176.9594319019.

Adding to 5541421 its reverse (1241455), we get a palindrome (6782876).

The spelling of 5541421 in words is "five million, five hundred forty-one thousand, four hundred twenty-one".