538905358550 has 24 divisors (see below), whose sum is σ = 1079468888736. Its totient is φ = 198980439840.

The previous prime is 538905358489. The next prime is 538905358559. The reversal of 538905358550 is 55853509835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538905358559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 414541934 + ... + 414543233.

It is an arithmetic number, because the mean of its divisors is an integer number (44977870364).

Almost surely, 2^538905358550 is an apocalyptic number.

538905358550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

538905358550 is an abundant number, since it is smaller than the sum of its proper divisors (540563530186).

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

538905358550 is a wasteful number, since it uses less digits than its factorization.

538905358550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829085192 (or 829085187 counting only the distinct ones).

The product of its (nonzero) digits is 16200000, while the sum is 56.

The spelling of 538905358550 in words is "five hundred thirty-eight billion, nine hundred five million, three hundred fifty-eight thousand, five hundred fifty".