200505541 has 4 divisors (see below), whose sum is σ = 203904000. Its totient is φ = 197107084.

The previous prime is 200505533. The next prime is 200505581. The reversal of 200505541 is 145505002.

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 200505541 - 2³ = 200505533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200505511) 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, 1699141 + ... + 1699258.

It is an arithmetic number, because the mean of its divisors is an integer number (50976000).

Almost surely, 2^200505541 is an apocalyptic number.

It is an amenable number.

200505541 is a deficient number, since it is larger than the sum of its proper divisors (3398459).

200505541 is an equidigital number, since it uses as much as digits as its factorization.

200505541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398458.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 200505541 is about 14159.9979166665. The cubic root of 200505541 is about 585.2958700105.

The spelling of 200505541 in words is "two hundred million, five hundred five thousand, five hundred forty-one".