203663053 has 4 divisors (see below), whose sum is σ = 222177888. Its totient is φ = 185148220.

The previous prime is 203663029. The next prime is 203663081. The reversal of 203663053 is 350366302.

203663053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203663053 - 2¹³ = 203654861 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 (203663023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9257401 + ... + 9257422.

It is an arithmetic number, because the mean of its divisors is an integer number (55544472).

Almost surely, 2^203663053 is an apocalyptic number.

It is an amenable number.

203663053 is a deficient number, since it is larger than the sum of its proper divisors (18514835).

203663053 is a wasteful number, since it uses less digits than its factorization.

203663053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514834.

The product of its (nonzero) digits is 9720, while the sum is 28.

The square root of 203663053 is about 14271.0564780608. The cubic root of 203663053 is about 588.3522472142.

The spelling of 203663053 in words is "two hundred three million, six hundred sixty-three thousand, fifty-three".