204495951053 has 4 divisors (see below), whose sum is σ = 206106155520. Its totient is φ = 202885746588.

The previous prime is 204495951031. The next prime is 204495951119. The reversal of 204495951053 is 350159594402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204495951053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204495950989 and 204495951007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204495951953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805102043 + ... + 805102296.

It is an arithmetic number, because the mean of its divisors is an integer number (51526538880).

Almost surely, 2^204495951053 is an apocalyptic number.

It is an amenable number.

204495951053 is a deficient number, since it is larger than the sum of its proper divisors (1610204467).

204495951053 is a wasteful number, since it uses less digits than its factorization.

204495951053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610204466.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 204495951053 in words is "two hundred four billion, four hundred ninety-five million, nine hundred fifty-one thousand, fifty-three".