200051540 has 24 divisors (see below), whose sum is σ = 452424840. Its totient is φ = 73865088.

The previous prime is 200051519. The next prime is 200051557. The reversal of 200051540 is 45150002.

200051540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5895184 + 194156356 = 2428^2 + 13934^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384455 + ... + 384974.

It is an arithmetic number, because the mean of its divisors is an integer number (18851035).

Almost surely, 2^200051540 is an apocalyptic number.

200051540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200051540 is an abundant number, since it is smaller than the sum of its proper divisors (252373300).

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

200051540 is a wasteful number, since it uses less digits than its factorization.

200051540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769451 (or 769449 counting only the distinct ones).

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

The square root of 200051540 is about 14143.9577205250. The cubic root of 200051540 is about 584.8537779528.

The spelling of 200051540 in words is "two hundred million, fifty-one thousand, five hundred forty".