5661803 has 6 divisors (see below), whose sum is σ = 6586236. Its totient is φ = 4852932.

The previous prime is 5661797. The next prime is 5661811. The reversal of 5661803 is 3081665.

It is not a de Polignac number, because 5661803 - 2⁶ = 5661739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5661823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57725 + ... + 57822.

It is an arithmetic number, because the mean of its divisors is an integer number (1097706).

Almost surely, 2^5661803 is an apocalyptic number.

5661803 is a deficient number, since it is larger than the sum of its proper divisors (924433).

5661803 is a wasteful number, since it uses less digits than its factorization.

5661803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115561 (or 115554 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 5661803 is about 2379.4543492154. The cubic root of 5661803 is about 178.2316871083.

The spelling of 5661803 in words is "five million, six hundred sixty-one thousand, eight hundred three".