55930107985949 has 2 divisors, whose sum is σ = 55930107985950. Its totient is φ = 55930107985948.

The previous prime is 55930107985907. The next prime is 55930107985979. The reversal of 55930107985949 is 94958970103955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52699396519225 + 3230711466724 = 7259435^2 + 1797418^2 .

It is a cyclic number.

It is not a de Polignac number, because 55930107985949 - 2⁸ = 55930107985693 is a prime.

It is a super-2 number, since 2×55930107985949² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55930107985979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27965053992974 + 27965053992975.

It is an arithmetic number, because the mean of its divisors is an integer number (27965053992975).

Almost surely, 2^{55930107985949} is an apocalyptic number.

It is an amenable number.

55930107985949 is a deficient number, since it is larger than the sum of its proper divisors (1).

55930107985949 is an equidigital number, since it uses as much as digits as its factorization.

55930107985949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124000, while the sum is 74.

The spelling of 55930107985949 in words is "fifty-five trillion, nine hundred thirty billion, one hundred seven million, nine hundred eighty-five thousand, nine hundred forty-nine".