55555673397 has 48 divisors (see below), whose sum is σ = 88533184320. Its totient is φ = 30885829632.

The previous prime is 55555673389. The next prime is 55555673461. The reversal of 55555673397 is 79337655555.

It is not a de Polignac number, because 55555673397 - 2³ = 55555673389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55555673397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555673597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 808263 + ... + 874299.

It is an arithmetic number, because the mean of its divisors is an integer number (1844441340).

Almost surely, 2^55555673397 is an apocalyptic number.

It is an amenable number.

55555673397 is a deficient number, since it is larger than the sum of its proper divisors (32977510923).

55555673397 is a wasteful number, since it uses less digits than its factorization.

55555673397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66210 (or 66203 counting only the distinct ones).

The product of its digits is 74418750, while the sum is 60.

The spelling of 55555673397 in words is "fifty-five billion, five hundred fifty-five million, six hundred seventy-three thousand, three hundred ninety-seven".