205455353 has 4 divisors (see below), whose sum is σ = 217540980. Its totient is φ = 193369728.

The previous prime is 205455347. The next prime is 205455359. The reversal of 205455353 is 353554502.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (205455347) and next prime (205455359).

It can be written as a sum of positive squares in 2 ways, for example, as 151462249 + 53993104 = 12307^2 + 7348^2 .

It is a cyclic number.

It is not a de Polignac number, because 205455353 - 2¹⁴ = 205438969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205455359) 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, 6042788 + ... + 6042821.

It is an arithmetic number, because the mean of its divisors is an integer number (54385245).

Almost surely, 2^205455353 is an apocalyptic number.

It is an amenable number.

205455353 is a deficient number, since it is larger than the sum of its proper divisors (12085627).

205455353 is a wasteful number, since it uses less digits than its factorization.

205455353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12085626.

The product of its (nonzero) digits is 45000, while the sum is 32.

The square root of 205455353 is about 14333.7138592899. The cubic root of 205455353 is about 590.0731049891.

The spelling of 205455353 in words is "two hundred five million, four hundred fifty-five thousand, three hundred fifty-three".