55310403500 has 48 divisors (see below), whose sum is σ = 131779563552. Its totient is φ = 20112872000.

The previous prime is 55310403481. The next prime is 55310403503. The reversal of 55310403500 is 530401355.

It is a self number, because there is not a number n which added to its sum of digits gives 55310403500.

It is not an unprimeable number, because it can be changed into a prime (55310403503) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5022719 + ... + 5033718.

It is an arithmetic number, because the mean of its divisors is an integer number (2745407574).

Almost surely, 2^55310403500 is an apocalyptic number.

55310403500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55310403500 is an abundant number, since it is smaller than the sum of its proper divisors (76469160052).

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

55310403500 is a wasteful number, since it uses less digits than its factorization.

55310403500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10056467 (or 10056455 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 55310403500 its reverse (530401355), we get a palindrome (55840804855).

The spelling of 55310403500 in words is "fifty-five billion, three hundred ten million, four hundred three thousand, five hundred".