55938801820 has 48 divisors (see below), whose sum is σ = 131276357856. Its totient is φ = 19845248000.

The previous prime is 55938801817. The next prime is 55938801827. The reversal of 55938801820 is 2810883955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55938801827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3091801 + ... + 3109840.

It is an arithmetic number, because the mean of its divisors is an integer number (2734924122).

Almost surely, 2^55938801820 is an apocalyptic number.

It is an amenable number.

55938801820 is an abundant number, since it is smaller than the sum of its proper divisors (75337556036).

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

55938801820 is a wasteful number, since it uses less digits than its factorization.

55938801820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201702 (or 6201700 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 49.

It can be divided in two parts, 55938 and 801820, that added together give a palindrome (857758).

The spelling of 55938801820 in words is "fifty-five billion, nine hundred thirty-eight million, eight hundred one thousand, eight hundred twenty".