55504770709 has 2 divisors, whose sum is σ = 55504770710. Its totient is φ = 55504770708.

The previous prime is 55504770667. The next prime is 55504770731. The reversal of 55504770709 is 90707740555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53871802609 + 1632968100 = 232103^2 + 40410^2 .

It is a cyclic number.

It is not a de Polignac number, because 55504770709 - 2¹³ = 55504762517 is a prime.

It is a super-3 number, since 3×55504770709³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55504776709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752385354 + 27752385355.

It is an arithmetic number, because the mean of its divisors is an integer number (27752385355).

Almost surely, 2^55504770709 is an apocalyptic number.

It is an amenable number.

55504770709 is a deficient number, since it is larger than the sum of its proper divisors (1).

55504770709 is an equidigital number, since it uses as much as digits as its factorization.

55504770709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1543500, while the sum is 49.

The spelling of 55504770709 in words is "fifty-five billion, five hundred four million, seven hundred seventy thousand, seven hundred nine".