55356230620 has 96 divisors (see below), whose sum is σ = 126404167680. Its totient is φ = 20285690880.

The previous prime is 55356230609. The next prime is 55356230621. The reversal of 55356230620 is 2603265355.

It is a self number, because there is not a number n which added to its sum of digits gives 55356230620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55356230621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1892547 + ... + 1921573.

It is an arithmetic number, because the mean of its divisors is an integer number (1316710080).

Almost surely, 2^55356230620 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 55356230620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63202083840).

55356230620 is an abundant number, since it is smaller than the sum of its proper divisors (71047937060).

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

55356230620 is a wasteful number, since it uses less digits than its factorization.

55356230620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29203 (or 29201 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 55356230620 its reverse (2603265355), we get a palindrome (57959495975).

The spelling of 55356230620 in words is "fifty-five billion, three hundred fifty-six million, two hundred thirty thousand, six hundred twenty".