200073551 has 4 divisors (see below), whose sum is σ = 200475000. Its totient is φ = 199672104.

The previous prime is 200073529. The next prime is 200073557. The reversal of 200073551 is 155370002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 200073551 - 2¹⁸ = 199811407 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 (200073557) 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, 199976 + ... + 200973.

It is an arithmetic number, because the mean of its divisors is an integer number (50118750).

Almost surely, 2^200073551 is an apocalyptic number.

200073551 is a deficient number, since it is larger than the sum of its proper divisors (401449).

200073551 is an equidigital number, since it uses as much as digits as its factorization.

200073551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401448.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 200073551 is about 14144.7358052386. The cubic root of 200073551 is about 584.8752269994.

The spelling of 200073551 in words is "two hundred million, seventy-three thousand, five hundred fifty-one".