5566553 has 2 divisors, whose sum is σ = 5566554. Its totient is φ = 5566552.

The previous prime is 5566543. The next prime is 5566559. The reversal of 5566553 is 3556655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4338889 + 1227664 = 2083^2 + 1108^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566553 - 2⁶ = 5566489 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (5566559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2783276 + 2783277.

It is an arithmetic number, because the mean of its divisors is an integer number (2783277).

Almost surely, 2^5566553 is an apocalyptic number.

It is an amenable number.

5566553 is a deficient number, since it is larger than the sum of its proper divisors (1).

5566553 is an equidigital number, since it uses as much as digits as its factorization.

5566553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67500, while the sum is 35.

The square root of 5566553 is about 2359.3543608369. The cubic root of 5566553 is about 177.2265497877.

The spelling of 5566553 in words is "five million, five hundred sixty-six thousand, five hundred fifty-three".