55059770509 has 2 divisors, whose sum is σ = 55059770510. Its totient is φ = 55059770508.

The previous prime is 55059770501. The next prime is 55059770599. The reversal of 55059770509 is 90507795055.

55059770509 is digitally balanced in base 2, 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., 54511976484 + 547794025 = 233478^2 + 23405^2 .

It is a cyclic number.

It is not a de Polignac number, because 55059770509 - 2³ = 55059770501 is a prime.

It is a super-2 number, since 2×55059770509² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55059770501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27529885254 + 27529885255.

It is an arithmetic number, because the mean of its divisors is an integer number (27529885255).

Almost surely, 2^55059770509 is an apocalyptic number.

It is an amenable number.

55059770509 is a deficient number, since it is larger than the sum of its proper divisors (1).

55059770509 is an equidigital number, since it uses as much as digits as its factorization.

55059770509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2480625, while the sum is 52.

The spelling of 55059770509 in words is "fifty-five billion, fifty-nine million, seven hundred seventy thousand, five hundred nine".