205550053 has 8 divisors (see below), whose sum is σ = 209194200. Its totient is φ = 201914880.

The previous prime is 205550029. The next prime is 205550069. The reversal of 205550053 is 350055502.

It can be written as a sum of positive squares in 4 ways, for example, as 484 + 205549569 = 22^2 + 14337^2 .

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

It is not a de Polignac number, because 205550053 - 2²¹ = 203452901 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 (205550153) 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, 57873 + ... + 61321.

It is an arithmetic number, because the mean of its divisors is an integer number (26149275).

Almost surely, 2^205550053 is an apocalyptic number.

It is an amenable number.

205550053 is a deficient number, since it is larger than the sum of its proper divisors (3644147).

205550053 is an equidigital number, since it uses as much as digits as its factorization.

205550053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 205550053 is about 14337.0168793930. The cubic root of 205550053 is about 590.1637513492.

The spelling of 205550053 in words is "two hundred five million, five hundred fifty thousand, fifty-three".