204552125633 has 4 divisors (see below), whose sum is σ = 206045206980. Its totient is φ = 203059044288.

The previous prime is 204552125623. The next prime is 204552125719. The reversal of 204552125633 is 336521255402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336521255402 = 2 ⋅168260627701.

It can be written as a sum of positive squares in 2 ways, for example, as 88181084209 + 116371041424 = 296953^2 + 341132^2 .

It is a cyclic number.

It is not a de Polignac number, because 204552125633 - 2¹² = 204552121537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204552125623) 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, 746540468 + ... + 746540741.

It is an arithmetic number, because the mean of its divisors is an integer number (51511301745).

Almost surely, 2^204552125633 is an apocalyptic number.

It is an amenable number.

204552125633 is a deficient number, since it is larger than the sum of its proper divisors (1493081347).

204552125633 is a wasteful number, since it uses less digits than its factorization.

204552125633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493081346.

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 204552125633 in words is "two hundred four billion, five hundred fifty-two million, one hundred twenty-five thousand, six hundred thirty-three".