5155061609 has 2 divisors, whose sum is σ = 5155061610. Its totient is φ = 5155061608.

The previous prime is 5155061581. The next prime is 5155061669. The reversal of 5155061609 is 9061605515.

It is a happy number.

5155061609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5041426009 + 113635600 = 71003^2 + 10660^2 .

It is a cyclic number.

It is not a de Polignac number, because 5155061609 - 2¹² = 5155057513 is a prime.

It is not a weakly prime, because it can be changed into another prime (5155061669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577530804 + 2577530805.

It is an arithmetic number, because the mean of its divisors is an integer number (2577530805).

Almost surely, 2^5155061609 is an apocalyptic number.

It is an amenable number.

5155061609 is a deficient number, since it is larger than the sum of its proper divisors (1).

5155061609 is an equidigital number, since it uses as much as digits as its factorization.

5155061609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 5155061609 is about 71798.7577120942. The cubic root of 5155061609 is about 1727.4730735106.

The spelling of 5155061609 in words is "five billion, one hundred fifty-five million, sixty-one thousand, six hundred nine".