55353132120 has 256 divisors, whose sum is σ = 198401011200. Its totient is φ = 12176547840.

The previous prime is 55353132103. The next prime is 55353132143. The reversal of 55353132120 is 2123135355.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 985104 + ... + 1039776.

It is an arithmetic number, because the mean of its divisors is an integer number (775003950).

Almost surely, 2^55353132120 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 55353132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99200505600).

55353132120 is an abundant number, since it is smaller than the sum of its proper divisors (143047879080).

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

55353132120 is a wasteful number, since it uses less digits than its factorization.

55353132120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54770 (or 54766 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 55353132120 its reverse (2123135355), we get a palindrome (57476267475).

The spelling of 55353132120 in words is "fifty-five billion, three hundred fifty-three million, one hundred thirty-two thousand, one hundred twenty".