203125642205504 has 28 divisors (see below), whose sum is σ = 403079178418644. Its totient is φ = 101562384651264.

The previous prime is 203125642205477. The next prime is 203125642205539. The reversal of 203125642205504 is 405502246521302.

It can be written as a sum of positive squares in 2 ways, for example, as 119435347107904 + 83690295097600 = 10928648^2 + 9148240^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8454884 + ... + 21857180.

It is an arithmetic number, because the mean of its divisors is an integer number (14395684943523).

Almost surely, 2^{203125642205504} is an apocalyptic number.

It is an amenable number.

203125642205504 is a deficient number, since it is larger than the sum of its proper divisors (199953536213140).

203125642205504 is a wasteful number, since it uses less digits than its factorization.

203125642205504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13639122 (or 13639112 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 41.

Adding to 203125642205504 its reverse (405502246521302), we get a palindrome (608627888726806).

The spelling of 203125642205504 in words is "two hundred three trillion, one hundred twenty-five billion, six hundred forty-two million, two hundred five thousand, five hundred four".