205500413 has 4 divisors (see below), whose sum is σ = 206648640. Its totient is φ = 204352188.

The previous prime is 205500401. The next prime is 205500433. The reversal of 205500413 is 314005502.

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 205500413 - 2⁸ = 205500157 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 (205500433) 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, 573845 + ... + 574202.

It is an arithmetic number, because the mean of its divisors is an integer number (51662160).

Almost surely, 2^205500413 is an apocalyptic number.

It is an amenable number.

205500413 is a deficient number, since it is larger than the sum of its proper divisors (1148227).

205500413 is a wasteful number, since it uses less digits than its factorization.

205500413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148226.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 205500413 is about 14335.2855918534. The cubic root of 205500413 is about 590.1162396656.

Adding to 205500413 its reverse (314005502), we get a palindrome (519505915).

The spelling of 205500413 in words is "two hundred five million, five hundred thousand, four hundred thirteen".