3553561001 has 2 divisors, whose sum is σ = 3553561002. Its totient is φ = 3553561000.

The previous prime is 3553560977. The next prime is 3553561003. The reversal of 3553561001 is 1001653553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3405306025 + 148254976 = 58355^2 + 12176^2 .

It is an emirp because it is prime and its reverse (1001653553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3553561001 - 2¹⁸ = 3553298857 is a prime.

Together with 3553561003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3553561003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1776780500 + 1776780501.

It is an arithmetic number, because the mean of its divisors is an integer number (1776780501).

Almost surely, 2^3553561001 is an apocalyptic number.

It is an amenable number.

3553561001 is a deficient number, since it is larger than the sum of its proper divisors (1).

3553561001 is an equidigital number, since it uses as much as digits as its factorization.

3553561001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 3553561001 is about 59611.7522054167. The cubic root of 3553561001 is about 1526.0002039785. Note that the first 3 decimals are identical.

The spelling of 3553561001 in words is "three billion, five hundred fifty-three million, five hundred sixty-one thousand, one".