3553009 has 2 divisors, whose sum is σ = 3553010. Its totient is φ = 3553008.

The previous prime is 3553007. The next prime is 3553021. The reversal of 3553009 is 9003553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 944784 = 1615^2 + 972^2 .

It is a cyclic number.

It is not a de Polignac number, because 3553009 - 2¹ = 3553007 is a prime.

Together with 3553007, it forms a pair of twin primes.

It is equal to p₂₅₃₆₀₉ and since 3553009 and 253609 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (3553001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776504 + 1776505.

It is an arithmetic number, because the mean of its divisors is an integer number (1776505).

Almost surely, 2^3553009 is an apocalyptic number.

It is an amenable number.

3553009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3553009 is an equidigital number, since it uses as much as digits as its factorization.

3553009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 3553009 is about 1884.9427046995. The cubic root of 3553009 is about 152.5921184908.

It can be divided in two parts, 355 and 3009, that added together give a square (3364 = 58²).

The spelling of 3553009 in words is "three million, five hundred fifty-three thousand, nine".