203040053 has 8 divisors (see below), whose sum is σ = 209615448. Its totient is φ = 196521984.

The previous prime is 203040041. The next prime is 203040059. The reversal of 203040053 is 350040302.

It can be written as a sum of positive squares in 4 ways, for example, as 35259844 + 167780209 = 5938^2 + 12953^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203040053 - 2¹⁰ = 203039029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203040059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7076 + ... + 21357.

It is an arithmetic number, because the mean of its divisors is an integer number (26201931).

Almost surely, 2^203040053 is an apocalyptic number.

It is an amenable number.

203040053 is a deficient number, since it is larger than the sum of its proper divisors (6575395).

203040053 is a wasteful number, since it uses less digits than its factorization.

203040053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28663.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 203040053 is about 14249.2123641975. The cubic root of 203040053 is about 587.7517163701.

Adding to 203040053 its reverse (350040302), we get a palindrome (553080355).

The spelling of 203040053 in words is "two hundred three million, forty thousand, fifty-three".