5655312389 has 2 divisors, whose sum is σ = 5655312390. Its totient is φ = 5655312388.

The previous prime is 5655312373. The next prime is 5655312401. The reversal of 5655312389 is 9832135565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3955152100 + 1700160289 = 62890^2 + 41233^2 .

It is a cyclic number.

It is not a de Polignac number, because 5655312389 - 2⁴ = 5655312373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5655315389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2827656194 + 2827656195.

It is an arithmetic number, because the mean of its divisors is an integer number (2827656195).

Almost surely, 2^5655312389 is an apocalyptic number.

It is an amenable number.

5655312389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5655312389 is an equidigital number, since it uses as much as digits as its factorization.

5655312389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972000, while the sum is 47.

The square root of 5655312389 is about 75201.8110752660. The cubic root of 5655312389 is about 1781.6355363628.

The spelling of 5655312389 in words is "five billion, six hundred fifty-five million, three hundred twelve thousand, three hundred eighty-nine".