55842231690757 has 16 divisors (see below), whose sum is σ = 57882204681840. Its totient is φ = 53809987133952.

The previous prime is 55842231690727. The next prime is 55842231690767. The reversal of 55842231690757 is 75709613224855.

It is a Cunningham number, because it is equal to 7472766²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 8110728068356 + 47731503622401 = 2847934^2 + 6908799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55842231690757 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 (55842231690727) 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, 29421343 + ... + 31261795.

It is an arithmetic number, because the mean of its divisors is an integer number (3617637792615).

It is a 1-persistent number, because it is pandigital, but 2⋅55842231690757 = 111684463381514 is not.

Almost surely, 2^{55842231690757} is an apocalyptic number.

It is an amenable number.

55842231690757 is a deficient number, since it is larger than the sum of its proper divisors (2039972991083).

55842231690757 is a wasteful number, since it uses less digits than its factorization.

55842231690757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842552.

The product of its (nonzero) digits is 127008000, while the sum is 64.

The spelling of 55842231690757 in words is "fifty-five trillion, eight hundred forty-two billion, two hundred thirty-one million, six hundred ninety thousand, seven hundred fifty-seven".