203541512055 has 32 divisors (see below), whose sum is σ = 375803710464. Its totient is φ = 92144169216.

The previous prime is 203541512029. The next prime is 203541512071. The reversal of 203541512055 is 550215145302.

It is not a de Polignac number, because 203541512055 - 2⁹ = 203541511543 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9399334 + ... + 9420963.

It is an arithmetic number, because the mean of its divisors is an integer number (11743865952).

Almost surely, 2^203541512055 is an apocalyptic number.

203541512055 is a deficient number, since it is larger than the sum of its proper divisors (172262198409).

203541512055 is a wasteful number, since it uses less digits than its factorization.

203541512055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18820415.

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 203541512055 its reverse (550215145302), we get a palindrome (753756657357).

The spelling of 203541512055 in words is "two hundred three billion, five hundred forty-one million, five hundred twelve thousand, fifty-five".