55532220520432 has 40 divisors (see below), whose sum is σ = 112628729014272. Its totient is φ = 26491972516800.

The previous prime is 55532220520423. The next prime is 55532220520477. The reversal of 55532220520432 is 23402502223555.

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, 788416348 + ... + 788486779.

Almost surely, 2^{55532220520432} is an apocalyptic number.

It is an amenable number.

55532220520432 is an abundant number, since it is smaller than the sum of its proper divisors (57096508493840).

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

55532220520432 is a wasteful number, since it uses less digits than its factorization.

55532220520432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576903237 (or 1576903231 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 40.

Adding to 55532220520432 its reverse (23402502223555), we get a palindrome (78934722743987).

The spelling of 55532220520432 in words is "fifty-five trillion, five hundred thirty-two billion, two hundred twenty million, five hundred twenty thousand, four hundred thirty-two".