55433442402 has 96 divisors (see below), whose sum is σ = 133106304240. Its totient is φ = 16562257920.

The previous prime is 55433442373. The next prime is 55433442517. The reversal of 55433442402 is 20424433455.

55433442402 is a `hidden beast` number, since 5 + 543 + 34 + 42 + 40 + 2 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 32532976161 + 22900466241 = 180369^2 + 151329^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4504674 + ... + 4516962.

Almost surely, 2^55433442402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55433442402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66553152120).

55433442402 is an abundant number, since it is smaller than the sum of its proper divisors (77672861838).

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

55433442402 is a wasteful number, since it uses less digits than its factorization.

55433442402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12868 (or 12865 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 55433442402 its reverse (20424433455), we get a palindrome (75857875857).

The spelling of 55433442402 in words is "fifty-five billion, four hundred thirty-three million, four hundred forty-two thousand, four hundred two".