55677650309 has 2 divisors, whose sum is σ = 55677650310. Its totient is φ = 55677650308.

The previous prime is 55677650227. The next prime is 55677650323. The reversal of 55677650309 is 90305677655.

55677650309 is digitally balanced in base 2, 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., 48146014084 + 7531636225 = 219422^2 + 86785^2 .

It is a cyclic number.

It is not a de Polignac number, because 55677650309 - 2²⁰ = 55676601733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55677650909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27838825154 + 27838825155.

It is an arithmetic number, because the mean of its divisors is an integer number (27838825155).

Almost surely, 2^55677650309 is an apocalyptic number.

It is an amenable number.

55677650309 is a deficient number, since it is larger than the sum of its proper divisors (1).

55677650309 is an equidigital number, since it uses as much as digits as its factorization.

55677650309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5953500, while the sum is 53.

The spelling of 55677650309 in words is "fifty-five billion, six hundred seventy-seven million, six hundred fifty thousand, three hundred nine".