55212843177 has 24 divisors (see below), whose sum is σ = 83258682624. Its totient is φ = 35191552704.

The previous prime is 55212843157. The next prime is 55212843181. The reversal of 55212843177 is 77134821255.

55212843177 is a `hidden beast` number, since 5 + 52 + 1 + 284 + 317 + 7 = 666.

It is not a de Polignac number, because 55212843177 - 2¹⁴ = 55212826793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55212843157) 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 in 23 ways as a sum of consecutive naturals, for example, 383728 + ... + 507614.

It is an arithmetic number, because the mean of its divisors is an integer number (3469111776).

Almost surely, 2^55212843177 is an apocalyptic number.

It is an amenable number.

55212843177 is a deficient number, since it is larger than the sum of its proper divisors (28045839447).

55212843177 is a wasteful number, since it uses less digits than its factorization.

55212843177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126069 (or 126066 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The spelling of 55212843177 in words is "fifty-five billion, two hundred twelve million, eight hundred forty-three thousand, one hundred seventy-seven".