561252604182811 has 2 divisors, whose sum is σ = 561252604182812. Its totient is φ = 561252604182810.

The previous prime is 561252604182773. The next prime is 561252604182869. The reversal of 561252604182811 is 118281406252165.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561252604182811 is a prime.

It is a super-2 number, since 2×561252604182811² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (561252604192811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280626302091405 + 280626302091406.

It is an arithmetic number, because the mean of its divisors is an integer number (280626302091406).

Almost surely, 2^{561252604182811} is an apocalyptic number.

561252604182811 is a deficient number, since it is larger than the sum of its proper divisors (1).

561252604182811 is an equidigital number, since it uses as much as digits as its factorization.

561252604182811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1843200, while the sum is 52.

The spelling of 561252604182811 in words is "five hundred sixty-one trillion, two hundred fifty-two billion, six hundred four million, one hundred eighty-two thousand, eight hundred eleven".