55172193534479 has 16 divisors (see below), whose sum is σ = 67205129527296. Its totient is φ = 44213900976000.

The previous prime is 55172193534463. The next prime is 55172193534529. The reversal of 55172193534479 is 97443539127155.

It is a happy number.

It is not a de Polignac number, because 55172193534479 - 2⁴ = 55172193534463 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 (55172193536479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1535186927 + ... + 1535222864.

It is an arithmetic number, because the mean of its divisors is an integer number (4200320595456).

Almost surely, 2^{55172193534479} is an apocalyptic number.

55172193534479 is a deficient number, since it is larger than the sum of its proper divisors (12032935992817).

55172193534479 is a wasteful number, since it uses less digits than its factorization.

55172193534479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070409966.

The product of its digits is 142884000, while the sum is 65.

The spelling of 55172193534479 in words is "fifty-five trillion, one hundred seventy-two billion, one hundred ninety-three million, five hundred thirty-four thousand, four hundred seventy-nine".