55721830683 has 8 divisors (see below), whose sum is σ = 74768996368. Its totient is φ = 36911276064.

The previous prime is 55721830663. The next prime is 55721830721. The reversal of 55721830683 is 38603812755.

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

It is not a de Polignac number, because 55721830683 - 2²⁶ = 55654721819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55721830643) 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, 59152216 + ... + 59153157.

It is an arithmetic number, because the mean of its divisors is an integer number (9346124546).

Almost surely, 2^55721830683 is an apocalyptic number.

55721830683 is a deficient number, since it is larger than the sum of its proper divisors (19047165685).

55721830683 is a wasteful number, since it uses less digits than its factorization.

55721830683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118305533.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 55721830683 in words is "fifty-five billion, seven hundred twenty-one million, eight hundred thirty thousand, six hundred eighty-three".