55079999977 has 2 divisors, whose sum is σ = 55079999978. Its totient is φ = 55079999976.

The previous prime is 55079999929. The next prime is 55080000043. The reversal of 55079999977 is 77999997055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44512982361 + 10567017616 = 210981^2 + 102796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55079999977 is a prime.

It is not a weakly prime, because it can be changed into another prime (55079699977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27539999988 + 27539999989.

It is an arithmetic number, because the mean of its divisors is an integer number (27539999989).

Almost surely, 2^55079999977 is an apocalyptic number.

It is an amenable number.

55079999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

55079999977 is an equidigital number, since it uses as much as digits as its factorization.

55079999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 506345175, while the sum is 76.

The spelling of 55079999977 in words is "fifty-five billion, seventy-nine million, nine hundred ninety-nine thousand, nine hundred seventy-seven".