55433839424 has 168 divisors, whose sum is σ = 121419396480. Its totient is φ = 25029181440.

The previous prime is 55433839397. The next prime is 55433839427. The reversal of 55433839424 is 42493833455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55433839427) 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, 96072224 + ... + 96072800.

Almost surely, 2^55433839424 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 55433839424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60709698240).

55433839424 is an abundant number, since it is smaller than the sum of its proper divisors (65985557056).

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

55433839424 is a wasteful number, since it uses less digits than its factorization.

55433839424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 686 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 50.

The spelling of 55433839424 in words is "fifty-five billion, four hundred thirty-three million, eight hundred thirty-nine thousand, four hundred twenty-four".