55393377867 has 12 divisors (see below), whose sum is σ = 82593710784. Its totient is φ = 35737662960.

The previous prime is 55393377799. The next prime is 55393377883. The reversal of 55393377867 is 76877339355.

55393377867 is a `hidden beast` number, since 5 + 539 + 3 + 37 + 7 + 8 + 67 = 666.

It is not a de Polignac number, because 55393377867 - 2¹¹ = 55393375819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55393377367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99271008 + ... + 99271565.

It is an arithmetic number, because the mean of its divisors is an integer number (6882809232).

Almost surely, 2^55393377867 is an apocalyptic number.

55393377867 is a deficient number, since it is larger than the sum of its proper divisors (27200332917).

55393377867 is a wasteful number, since it uses less digits than its factorization.

55393377867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198542610 (or 198542607 counting only the distinct ones).

The product of its digits is 100018800, while the sum is 63.

The spelling of 55393377867 in words is "fifty-five billion, three hundred ninety-three million, three hundred seventy-seven thousand, eight hundred sixty-seven".