55522432440 has 96 divisors (see below), whose sum is σ = 181746255600. Its totient is φ = 14699450880.

The previous prime is 55522432411. The next prime is 55522432451. The reversal of 55522432440 is 4423422555.

55522432440 is a `hidden beast` number, since 5 + 552 + 2 + 43 + 24 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 55522432395 and 55522432404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504741 + ... + 604820.

Almost surely, 2^55522432440 is an apocalyptic number.

It is an amenable number.

55522432440 is an abundant number, since it is smaller than the sum of its proper divisors (126223823160).

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

55522432440 is a wasteful number, since it uses less digits than its factorization.

55522432440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109717 (or 1109710 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 55522432440 its reverse (4423422555), we get a palindrome (59945854995).

The spelling of 55522432440 in words is "fifty-five billion, five hundred twenty-two million, four hundred thirty-two thousand, four hundred forty".