55978339736 has 32 divisors (see below), whose sum is σ = 116210134080. Its totient is φ = 25064925600.

The previous prime is 55978339727. The next prime is 55978339763. The reversal of 55978339736 is 63793387955.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4741250 + ... + 4753041.

It is an arithmetic number, because the mean of its divisors is an integer number (3631566690).

Almost surely, 2^55978339736 is an apocalyptic number.

It is an amenable number.

55978339736 is an abundant number, since it is smaller than the sum of its proper divisors (60231794344).

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

55978339736 is a wasteful number, since it uses less digits than its factorization.

55978339736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9494375 (or 9494371 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 65.

The spelling of 55978339736 in words is "fifty-five billion, nine hundred seventy-eight million, three hundred thirty-nine thousand, seven hundred thirty-six".