5661272 has 16 divisors (see below), whose sum is σ = 11239560. Its totient is φ = 2664064.

The previous prime is 5661247. The next prime is 5661277. The reversal of 5661272 is 2721665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661277) 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, 20678 + ... + 20949.

Almost surely, 2^5661272 is an apocalyptic number.

It is an amenable number.

5661272 is a deficient number, since it is larger than the sum of its proper divisors (5578288).

5661272 is a wasteful number, since it uses less digits than its factorization.

5661272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41650 (or 41646 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 5661272 is about 2379.3427663958. The cubic root of 5661272 is about 178.2261150326.

The spelling of 5661272 in words is "five million, six hundred sixty-one thousand, two hundred seventy-two".