55546004977 has 2 divisors, whose sum is σ = 55546004978. Its totient is φ = 55546004976.

The previous prime is 55546004957. The next prime is 55546004999. The reversal of 55546004977 is 77940064555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55223120016 + 322884961 = 234996^2 + 17969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55546004977 is a prime.

It is not a weakly prime, because it can be changed into another prime (55546004957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27773002488 + 27773002489.

It is an arithmetic number, because the mean of its divisors is an integer number (27773002489).

Almost surely, 2^55546004977 is an apocalyptic number.

It is an amenable number.

55546004977 is a deficient number, since it is larger than the sum of its proper divisors (1).

55546004977 is an equidigital number, since it uses as much as digits as its factorization.

55546004977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 55546004977 in words is "fifty-five billion, five hundred forty-six million, four thousand, nine hundred seventy-seven".