200556101 has 4 divisors (see below), whose sum is σ = 200721312. Its totient is φ = 200390892.

The previous prime is 200556091. The next prime is 200556119. The reversal of 200556101 is 101655002.

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 200556101 - 2¹⁰ = 200555077 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 (200556121) 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, 80771 + ... + 83216.

It is an arithmetic number, because the mean of its divisors is an integer number (50180328).

Almost surely, 2^200556101 is an apocalyptic number.

It is an amenable number.

200556101 is a deficient number, since it is larger than the sum of its proper divisors (165211).

200556101 is a wasteful number, since it uses less digits than its factorization.

200556101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165210.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 200556101 is about 14161.7831151307. The cubic root of 200556101 is about 585.3450624535.

The spelling of 200556101 in words is "two hundred million, five hundred fifty-six thousand, one hundred one".