55065038977 has 24 divisors (see below), whose sum is σ = 60724333880. Its totient is φ = 49918003200.

The previous prime is 55065038939. The next prime is 55065038981. The reversal of 55065038977 is 77983056055.

It can be written as a sum of positive squares in 12 ways, for example, as 48029352336 + 7035686641 = 219156^2 + 83879^2 .

It is not a de Polignac number, because 55065038977 - 2²⁷ = 54930821249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55065018977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85904577 + ... + 85905217.

Almost surely, 2^55065038977 is an apocalyptic number.

It is an amenable number.

55065038977 is a deficient number, since it is larger than the sum of its proper divisors (5659294903).

55065038977 is an frugal number, since it uses more digits than its factorization.

55065038977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 715 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 55.

The spelling of 55065038977 in words is "fifty-five billion, sixty-five million, thirty-eight thousand, nine hundred seventy-seven".