204380551 has 8 divisors (see below), whose sum is σ = 211766400. Its totient is φ = 197044320.

The previous prime is 204380521. The next prime is 204380557. The reversal of 204380551 is 155083402.

204380551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 204380551 - 2¹³ = 204372359 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 (204380557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3916 + ... + 20593.

It is an arithmetic number, because the mean of its divisors is an integer number (26470800).

Almost surely, 2^204380551 is an apocalyptic number.

204380551 is a deficient number, since it is larger than the sum of its proper divisors (7385849).

204380551 is a wasteful number, since it uses less digits than its factorization.

204380551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24809.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 204380551 is about 14296.1725996856. The cubic root of 204380551 is about 589.0423524188.

The spelling of 204380551 in words is "two hundred four million, three hundred eighty thousand, five hundred fifty-one".