55312723686 has 32 divisors (see below), whose sum is σ = 123943995648. Its totient is φ = 16308419040.

The previous prime is 55312723663. The next prime is 55312723703. The reversal of 55312723686 is 68632721355.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 11322850 + ... + 11327733.

It is an arithmetic number, because the mean of its divisors is an integer number (3873249864).

Almost surely, 2^55312723686 is an apocalyptic number.

55312723686 is an abundant number, since it is smaller than the sum of its proper divisors (68631271962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55312723686 is a wasteful number, since it uses less digits than its factorization.

55312723686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22650636.

The product of its digits is 1814400, while the sum is 48.

The spelling of 55312723686 in words is "fifty-five billion, three hundred twelve million, seven hundred twenty-three thousand, six hundred eighty-six".