5541861 has 8 divisors (see below), whose sum is σ = 7957600. Its totient is φ = 3410352.

The previous prime is 5541857. The next prime is 5541869. The reversal of 5541861 is 1681455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5541861 - 2² = 5541857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5541869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71011 + ... + 71088.

It is an arithmetic number, because the mean of its divisors is an integer number (994700).

Almost surely, 2^5541861 is an apocalyptic number.

It is an amenable number.

5541861 is a deficient number, since it is larger than the sum of its proper divisors (2415739).

5541861 is a wasteful number, since it uses less digits than its factorization.

5541861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142115.

The product of its digits is 4800, while the sum is 30.

The square root of 5541861 is about 2354.1157575616. The cubic root of 5541861 is about 176.9641154232.

It can be divided in two parts, 554 and 1861, that added together give a triangular number (2415 = T₆₉).

The spelling of 5541861 in words is "five million, five hundred forty-one thousand, eight hundred sixty-one".