206501053 has 4 divisors (see below), whose sum is σ = 225273888. Its totient is φ = 187728220.

The previous prime is 206501021. The next prime is 206501077. The reversal of 206501053 is 350105602.

It is a happy number.

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 206501053 - 2⁵ = 206501021 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 (206501453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9386401 + ... + 9386422.

It is an arithmetic number, because the mean of its divisors is an integer number (56318472).

Almost surely, 2^206501053 is an apocalyptic number.

It is an amenable number.

206501053 is a deficient number, since it is larger than the sum of its proper divisors (18772835).

206501053 is a wasteful number, since it uses less digits than its factorization.

206501053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18772834.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 206501053 is about 14370.1445017091. The cubic root of 206501053 is about 591.0725038763.

Adding to 206501053 its reverse (350105602), we get a palindrome (556606655).

The spelling of 206501053 in words is "two hundred six million, five hundred one thousand, fifty-three".