6100000561 has 2 divisors, whose sum is σ = 6100000562. Its totient is φ = 6100000560.

The previous prime is 6100000507. The next prime is 6100000567. The reversal of 6100000561 is 1650000016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6037290000 + 62710561 = 77700^2 + 7919^2 .

It is a cyclic number.

It is not a de Polignac number, because 6100000561 - 2⁷ = 6100000433 is a prime.

It is not a weakly prime, because it can be changed into another prime (6100000567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3050000280 + 3050000281.

It is an arithmetic number, because the mean of its divisors is an integer number (3050000281).

Almost surely, 2^6100000561 is an apocalyptic number.

6100000561 is the 34929-th centered decagonal number.

It is an amenable number.

6100000561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6100000561 is an equidigital number, since it uses as much as digits as its factorization.

6100000561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 6100000561 is about 78102.5003505009. The cubic root of 6100000561 is about 1827.1601928765.

Adding to 6100000561 its reverse (1650000016), we get a palindrome (7750000577).

The spelling of 6100000561 in words is "six billion, one hundred million, five hundred sixty-one", and thus it is an aban number.