55655560787 has 2 divisors, whose sum is σ = 55655560788. Its totient is φ = 55655560786.

The previous prime is 55655560771. The next prime is 55655560799. The reversal of 55655560787 is 78706555655.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55655560787 - 2⁴ = 55655560771 is a prime.

It is not a weakly prime, because it can be changed into another prime (55655560187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27827780393 + 27827780394.

It is an arithmetic number, because the mean of its divisors is an integer number (27827780394).

Almost surely, 2^55655560787 is an apocalyptic number.

55655560787 is a deficient number, since it is larger than the sum of its proper divisors (1).

55655560787 is an equidigital number, since it uses as much as digits as its factorization.

55655560787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44100000, while the sum is 59.

The spelling of 55655560787 in words is "fifty-five billion, six hundred fifty-five million, five hundred sixty thousand, seven hundred eighty-seven".