200550401 has 4 divisors (see below), whose sum is σ = 200608704. Its totient is φ = 200492100.

The previous prime is 200550391. The next prime is 200550431. The reversal of 200550401 is 104055002.

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 a de Polignac number, because none of the positive numbers 2^k-200550401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200550401.

It is not an unprimeable number, because it can be changed into a prime (200550431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23645 + ... + 30986.

It is an arithmetic number, because the mean of its divisors is an integer number (50152176).

Almost surely, 2^200550401 is an apocalyptic number.

It is an amenable number.

200550401 is a deficient number, since it is larger than the sum of its proper divisors (58303).

200550401 is an equidigital number, since it uses as much as digits as its factorization.

200550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58302.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 200550401 is about 14161.5818678564. The cubic root of 200550401 is about 585.3395170417.

The spelling of 200550401 in words is "two hundred million, five hundred fifty thousand, four hundred one".