55730366779 has 2 divisors, whose sum is σ = 55730366780. Its totient is φ = 55730366778.

The previous prime is 55730366737. The next prime is 55730366801. The reversal of 55730366779 is 97766303755.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55730366779 - 2⁷ = 55730366651 is a prime.

It is not a weakly prime, because it can be changed into another prime (55730346779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27865183389 + 27865183390.

It is an arithmetic number, because the mean of its divisors is an integer number (27865183390).

Almost surely, 2^55730366779 is an apocalyptic number.

55730366779 is a deficient number, since it is larger than the sum of its proper divisors (1).

55730366779 is an equidigital number, since it uses as much as digits as its factorization.

55730366779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25004700, while the sum is 58.

The spelling of 55730366779 in words is "fifty-five billion, seven hundred thirty million, three hundred sixty-six thousand, seven hundred seventy-nine".