5012105561 has 2 divisors, whose sum is σ = 5012105562. Its totient is φ = 5012105560.

The previous prime is 5012105543. The next prime is 5012105573. The reversal of 5012105561 is 1655012105.

5012105561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3974041600 + 1038063961 = 63040^2 + 32219^2 .

It is a cyclic number.

It is not a de Polignac number, because 5012105561 - 2²⁶ = 4944996697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5012105561.

It is not a weakly prime, because it can be changed into another prime (5012105261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2506052780 + 2506052781.

It is an arithmetic number, because the mean of its divisors is an integer number (2506052781).

Almost surely, 2^5012105561 is an apocalyptic number.

It is an amenable number.

5012105561 is a deficient number, since it is larger than the sum of its proper divisors (1).

5012105561 is an equidigital number, since it uses as much as digits as its factorization.

5012105561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 5012105561 is about 70796.2256126695. The cubic root of 5012105561 is about 1711.3548489910.

Adding to 5012105561 its reverse (1655012105), we get a palindrome (6667117666).

The spelling of 5012105561 in words is "five billion, twelve million, one hundred five thousand, five hundred sixty-one".