3554561 has 2 divisors, whose sum is σ = 3554562. Its totient is φ = 3554560.

The previous prime is 3554557. The next prime is 3554569. The reversal of 3554561 is 1654553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2640625 + 913936 = 1625^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 3554561 - 2² = 3554557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3554569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1777280 + 1777281.

It is an arithmetic number, because the mean of its divisors is an integer number (1777281).

Almost surely, 2^3554561 is an apocalyptic number.

It is an amenable number.

3554561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3554561 is an equidigital number, since it uses as much as digits as its factorization.

3554561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9000, while the sum is 29.

The square root of 3554561 is about 1885.3543433530. The cubic root of 3554561 is about 152.6143333228.

The spelling of 3554561 in words is "three million, five hundred fifty-four thousand, five hundred sixty-one".