55747639584 has 480 divisors, whose sum is σ = 203485556736. Its totient is φ = 14579066880.

The previous prime is 55747639583. The next prime is 55747639627. The reversal of 55747639584 is 48593674755.

55747639584 is a `hidden beast` number, since 5 + 5 + 7 + 47 + 6 + 3 + 9 + 584 = 666.

55747639584 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (55747639583) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 29954814 + ... + 29956674.

Almost surely, 2^55747639584 is an apocalyptic number.

55747639584 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55747639584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101742778368).

55747639584 is an abundant number, since it is smaller than the sum of its proper divisors (147737917152).

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

55747639584 is a wasteful number, since it uses less digits than its factorization.

55747639584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030 (or 2013 counting only the distinct ones).

The product of its digits is 127008000, while the sum is 63.

The spelling of 55747639584 in words is "fifty-five billion, seven hundred forty-seven million, six hundred thirty-nine thousand, five hundred eighty-four".