5661043 has 6 divisors (see below), whose sum is σ = 5747012. Its totient is φ = 5576340.

The previous prime is 5661041. The next prime is 5661067. The reversal of 5661043 is 3401665.

It is not a de Polignac number, because 5661043 - 2¹ = 5661041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5660999 and 5661017.

It is not an unprimeable number, because it can be changed into a prime (5661041) 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, 4480 + ... + 5602.

Almost surely, 2^5661043 is an apocalyptic number.

5661043 is a deficient number, since it is larger than the sum of its proper divisors (85969).

5661043 is an equidigital number, since it uses as much as digits as its factorization.

5661043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265 (or 1194 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 5661043 is about 2379.2946433765. The cubic root of 5661043 is about 178.2237119019.

The spelling of 5661043 in words is "five million, six hundred sixty-one thousand, forty-three".