5541921 has 36 divisors (see below), whose sum is σ = 10069696. Its totient is φ = 2874960.

The previous prime is 5541869. The next prime is 5541931. The reversal of 5541921 is 1291455.

It is not a de Polignac number, because 5541921 - 2⁶ = 5541857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5541931) 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 in 35 ways as a sum of consecutive naturals, for example, 7260 + ... + 7986.

Almost surely, 2^5541921 is an apocalyptic number.

It is an amenable number.

5541921 is a deficient number, since it is larger than the sum of its proper divisors (4527775).

5541921 is a wasteful number, since it uses less digits than its factorization.

5541921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 748 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5541921 is about 2354.1285011656. The cubic root of 5541921 is about 176.9647540659.

The spelling of 5541921 in words is "five million, five hundred forty-one thousand, nine hundred twenty-one".