205245254 has 8 divisors (see below), whose sum is σ = 312463128. Its totient is φ = 101090880.

The previous prime is 205245251. The next prime is 205245259. The reversal of 205245254 is 452542502.

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

It is a super-2 number, since 2×205245254² = 84251228579049032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205245251) 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, 765707 + ... + 765974.

It is an arithmetic number, because the mean of its divisors is an integer number (39057891).

Almost surely, 2^205245254 is an apocalyptic number.

205245254 is a deficient number, since it is larger than the sum of its proper divisors (107217874).

205245254 is a wasteful number, since it uses less digits than its factorization.

205245254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531750.

The product of its (nonzero) digits is 16000, while the sum is 29.

The square root of 205245254 is about 14326.3831443948. The cubic root of 205245254 is about 589.8718997960.

Adding to 205245254 its reverse (452542502), we get a palindrome (657787756).

The spelling of 205245254 in words is "two hundred five million, two hundred forty-five thousand, two hundred fifty-four".