204253531035055 has 32 divisors (see below), whose sum is σ = 249498785914560. Its totient is φ = 160496514339840.

The previous prime is 204253531035053. The next prime is 204253531035089. The reversal of 204253531035055 is 550530135352402.

It is not a de Polignac number, because 204253531035055 - 2¹ = 204253531035053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204253531035053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264695569 + ... + 265466101.

It is an arithmetic number, because the mean of its divisors is an integer number (7796837059830).

Almost surely, 2^{204253531035055} is an apocalyptic number.

204253531035055 is a deficient number, since it is larger than the sum of its proper divisors (45245254879505).

204253531035055 is a wasteful number, since it uses less digits than its factorization.

204253531035055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774331.

The product of its (nonzero) digits is 1350000, while the sum is 43.

Adding to 204253531035055 its reverse (550530135352402), we get a palindrome (754783666387457).

The spelling of 204253531035055 in words is "two hundred four trillion, two hundred fifty-three billion, five hundred thirty-one million, thirty-five thousand, fifty-five".