200851506 has 24 divisors (see below), whose sum is σ = 450185580. Its totient is φ = 64641696.

The previous prime is 200851501. The next prime is 200851507. The reversal of 200851506 is 605158002.

It can be written as a sum of positive squares in 2 ways, for example, as 198556281 + 2295225 = 14091^2 + 1515^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 200851506.

It is not an unprimeable number, because it can be changed into a prime (200851501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191865 + ... + 192908.

Almost surely, 2^200851506 is an apocalyptic number.

200851506 is an abundant number, since it is smaller than the sum of its proper divisors (249334074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

200851506 is a wasteful number, since it uses less digits than its factorization.

200851506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384810 (or 384807 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 200851506 is about 14172.2089315674. The cubic root of 200851506 is about 585.6323121392.

The spelling of 200851506 in words is "two hundred million, eight hundred fifty-one thousand, five hundred six".