5575561 has 2 divisors, whose sum is σ = 5575562. Its totient is φ = 5575560.

The previous prime is 5575553. The next prime is 5575579. The reversal of 5575561 is 1655755.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5494336 + 81225 = 2344^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 5575561 - 2³ = 5575553 is a prime.

It is not a weakly prime, because it can be changed into another prime (5575261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2787780 + 2787781.

It is an arithmetic number, because the mean of its divisors is an integer number (2787781).

Almost surely, 2^5575561 is an apocalyptic number.

It is an amenable number.

5575561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5575561 is an equidigital number, since it uses as much as digits as its factorization.

5575561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26250, while the sum is 34.

The square root of 5575561 is about 2361.2625859908. The cubic root of 5575561 is about 177.3220964325.

The spelling of 5575561 in words is "five million, five hundred seventy-five thousand, five hundred sixty-one".