55405719695 has 8 divisors (see below), whose sum is σ = 67096835520. Its totient is φ = 43917927840.

The previous prime is 55405719647. The next prime is 55405719701. The reversal of 55405719695 is 59691750455.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55405719695 - 2⁶ = 55405719631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55405719695.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 50830391 + ... + 50831480.

It is an arithmetic number, because the mean of its divisors is an integer number (8387104440).

Almost surely, 2^55405719695 is an apocalyptic number.

55405719695 is a deficient number, since it is larger than the sum of its proper divisors (11691115825).

55405719695 is a wasteful number, since it uses less digits than its factorization.

55405719695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101661985.

The product of its (nonzero) digits is 8505000, while the sum is 56.

The spelling of 55405719695 in words is "fifty-five billion, four hundred five million, seven hundred nineteen thousand, six hundred ninety-five".