55993737312 has 144 divisors (see below), whose sum is σ = 165324453840. Its totient is φ = 17955173376.

The previous prime is 55993737299. The next prime is 55993737313. The reversal of 55993737312 is 21373739955.

55993737312 is a `hidden beast` number, since 5 + 599 + 3 + 7 + 37 + 3 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55993737313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2301403 + ... + 2325605.

It is an arithmetic number, because the mean of its divisors is an integer number (1148086485).

Almost surely, 2^55993737312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55993737312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82662226920).

55993737312 is an abundant number, since it is smaller than the sum of its proper divisors (109330716528).

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

55993737312 is a wasteful number, since it uses less digits than its factorization.

55993737312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24525 (or 24514 counting only the distinct ones).

The product of its digits is 5358150, while the sum is 54.

The spelling of 55993737312 in words is "fifty-five billion, nine hundred ninety-three million, seven hundred thirty-seven thousand, three hundred twelve".