5631541 has 2 divisors, whose sum is σ = 5631542. Its totient is φ = 5631540.

The previous prime is 5631533. The next prime is 5631569. The reversal of 5631541 is 1451365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 14641 = 2370^2 + 121^2 .

It is a cyclic number.

It is not a de Polignac number, because 5631541 - 2³ = 5631533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5631341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2815770 + 2815771.

It is an arithmetic number, because the mean of its divisors is an integer number (2815771).

Almost surely, 2^5631541 is an apocalyptic number.

It is an amenable number.

5631541 is a deficient number, since it is larger than the sum of its proper divisors (1).

5631541 is an equidigital number, since it uses as much as digits as its factorization.

5631541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 5631541 is about 2373.0868083574. The cubic root of 5631541 is about 177.9135737484.

The spelling of 5631541 in words is "five million, six hundred thirty-one thousand, five hundred forty-one".