204981550 has 24 divisors (see below), whose sum is σ = 390568752. Its totient is φ = 79992000.

The previous prime is 204981527. The next prime is 204981551. The reversal of 204981550 is 55189402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204981551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47946 + ... + 52045.

It is an arithmetic number, because the mean of its divisors is an integer number (16273698).

Almost surely, 2^204981550 is an apocalyptic number.

204981550 is a deficient number, since it is larger than the sum of its proper divisors (185587202).

204981550 is a wasteful number, since it uses less digits than its factorization.

204981550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100044 (or 100039 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 204981550 is about 14317.1767468311. The cubic root of 204981550 is about 589.6191643607.

The spelling of 204981550 in words is "two hundred four million, nine hundred eighty-one thousand, five hundred fifty".