5661757 has 8 divisors (see below), whose sum is σ = 5918040. Its totient is φ = 5409600.

The previous prime is 5661743. The next prime is 5661779. The reversal of 5661757 is 7571665.

It can be written as a sum of positive squares in 4 ways, for example, as 2859481 + 2802276 = 1691^2 + 1674^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5661757 - 2¹⁹ = 5137469 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1963 + ... + 3895.

It is an arithmetic number, because the mean of its divisors is an integer number (739755).

Almost surely, 2^5661757 is an apocalyptic number.

It is an amenable number.

5661757 is a deficient number, since it is larger than the sum of its proper divisors (256283).

5661757 is a wasteful number, since it uses less digits than its factorization.

5661757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063.

The product of its digits is 44100, while the sum is 37.

The square root of 5661757 is about 2379.4446831141. Note that the first 3 decimals coincide. The cubic root of 5661757 is about 178.2312044188.

The spelling of 5661757 in words is "five million, six hundred sixty-one thousand, seven hundred fifty-seven".