55721879318453 has 8 divisors (see below), whose sum is σ = 55927757904000. Its totient is φ = 55516002665760.

The previous prime is 55721879318429. The next prime is 55721879318459. The reversal of 55721879318453 is 35481397812755.

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

It is a cyclic number.

It is not a de Polignac number, because 55721879318453 - 2¹⁶ = 55721879252917 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 (55721879318459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85446401 + ... + 86096057.

It is an arithmetic number, because the mean of its divisors is an integer number (6990969738000).

Almost surely, 2^{55721879318453} is an apocalyptic number.

It is an amenable number.

55721879318453 is a deficient number, since it is larger than the sum of its proper divisors (205878585547).

55721879318453 is a wasteful number, since it uses less digits than its factorization.

55721879318453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966427.

The product of its digits is 254016000, while the sum is 68.

The spelling of 55721879318453 in words is "fifty-five trillion, seven hundred twenty-one billion, eight hundred seventy-nine million, three hundred eighteen thousand, four hundred fifty-three".