5533661 has 4 divisors (see below), whose sum is σ = 6324192. Its totient is φ = 4743132.

The previous prime is 5533657. The next prime is 5533663. The reversal of 5533661 is 1663355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5533661 - 2² = 5533657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5533663) 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, 395255 + ... + 395268.

It is an arithmetic number, because the mean of its divisors is an integer number (1581048).

Almost surely, 2^5533661 is an apocalyptic number.

It is an amenable number.

5533661 is a deficient number, since it is larger than the sum of its proper divisors (790531).

5533661 is an equidigital number, since it uses as much as digits as its factorization.

5533661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790530.

The product of its digits is 8100, while the sum is 29.

The square root of 5533661 is about 2352.3734822515. The cubic root of 5533661 is about 176.8767908437.

The spelling of 5533661 in words is "five million, five hundred thirty-three thousand, six hundred sixty-one".