204343400053 has 8 divisors (see below), whose sum is σ = 220468899896. Its totient is φ = 188276011200.

The previous prime is 204343400021. The next prime is 204343400087. The reversal of 204343400053 is 350004343402.

It can be written as a sum of positive squares in 4 ways, for example, as 4719415204 + 199623984849 = 68698^2 + 446793^2 .

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 204343400053 - 2⁵ = 204343400021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204343399994 and 204343400030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204343404053) 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, 14520438 + ... + 14534503.

It is an arithmetic number, because the mean of its divisors is an integer number (27558612487).

Almost surely, 2^204343400053 is an apocalyptic number.

It is an amenable number.

204343400053 is a deficient number, since it is larger than the sum of its proper divisors (16125499843).

204343400053 is a wasteful number, since it uses less digits than its factorization.

204343400053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29055495.

The product of its (nonzero) digits is 17280, while the sum is 28.

Adding to 204343400053 its reverse (350004343402), we get a palindrome (554347743455).

The spelling of 204343400053 in words is "two hundred four billion, three hundred forty-three million, four hundred thousand, fifty-three".