53557421300 has 18 divisors (see below), whose sum is σ = 116219604438. Its totient is φ = 21422968480.

The previous prime is 53557421279. The next prime is 53557421311. The reversal of 53557421300 is 312475535.

It can be written as a sum of positive squares in 3 ways, for example, as 153908836 + 53403512464 = 12406^2 + 231092^2 .

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 5 ways as a sum of consecutive naturals, for example, 267787007 + ... + 267787206.

It is an arithmetic number, because the mean of its divisors is an integer number (6456644691).

Almost surely, 2^53557421300 is an apocalyptic number.

53557421300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53557421300 is an abundant number, since it is smaller than the sum of its proper divisors (62662183138).

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

53557421300 is a wasteful number, since it uses less digits than its factorization.

53557421300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535574227 (or 535574220 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

Adding to 53557421300 its reverse (312475535), we get a palindrome (53869896835).

The spelling of 53557421300 in words is "fifty-three billion, five hundred fifty-seven million, four hundred twenty-one thousand, three hundred".