5541961 has 4 divisors (see below), whose sum is σ = 5546772. Its totient is φ = 5537152.

The previous prime is 5541959. The next prime is 5541973. The reversal of 5541961 is 1691455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 2839225 = 1644^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 5541961 - 2¹ = 5541959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5541931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 465 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (1386693).

Almost surely, 2^5541961 is an apocalyptic number.

It is an amenable number.

5541961 is a deficient number, since it is larger than the sum of its proper divisors (4811).

5541961 is a wasteful number, since it uses less digits than its factorization.

5541961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810.

The product of its digits is 5400, while the sum is 31.

The square root of 5541961 is about 2354.1369968632. The cubic root of 5541961 is about 176.9651798252.

The spelling of 5541961 in words is "five million, five hundred forty-one thousand, nine hundred sixty-one".