204457264553 has 2 divisors, whose sum is σ = 204457264554. Its totient is φ = 204457264552.

The previous prime is 204457264549. The next prime is 204457264619. The reversal of 204457264553 is 355462754402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111939092329 + 92518172224 = 334573^2 + 304168^2 .

It is a cyclic number.

It is not a de Polignac number, because 204457264553 - 2² = 204457264549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204457264498 and 204457264507.

It is not a weakly prime, because it can be changed into another prime (201457264553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102228632276 + 102228632277.

It is an arithmetic number, because the mean of its divisors is an integer number (102228632277).

Almost surely, 2^204457264553 is an apocalyptic number.

It is an amenable number.

204457264553 is a deficient number, since it is larger than the sum of its proper divisors (1).

204457264553 is an equidigital number, since it uses as much as digits as its factorization.

204457264553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032000, while the sum is 47.

The spelling of 204457264553 in words is "two hundred four billion, four hundred fifty-seven million, two hundred sixty-four thousand, five hundred fifty-three".