561676001 has 2 divisors, whose sum is σ = 561676002. Its totient is φ = 561676000.

The previous prime is 561675953. The next prime is 561676009. The reversal of 561676001 is 100676165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540516001 + 21160000 = 23249^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 561676001 - 2¹⁰ = 561674977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (561676009) 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, 280838000 + 280838001.

It is an arithmetic number, because the mean of its divisors is an integer number (280838001).

Almost surely, 2^561676001 is an apocalyptic number.

It is an amenable number.

561676001 is a deficient number, since it is larger than the sum of its proper divisors (1).

561676001 is an equidigital number, since it uses as much as digits as its factorization.

561676001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 561676001 is about 23699.7046606071. The cubic root of 561676001 is about 825.0785360191.

The spelling of 561676001 in words is "five hundred sixty-one million, six hundred seventy-six thousand, one".