204560401 has 2 divisors, whose sum is σ = 204560402. Its totient is φ = 204560400.

The previous prime is 204560387. The next prime is 204560423. The reversal of 204560401 is 104065402.

It is an a-pointer prime, because the next prime (204560423) can be obtained adding 204560401 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187553025 + 17007376 = 13695^2 + 4124^2 .

It is a cyclic number.

It is not a de Polignac number, because 204560401 - 2⁹ = 204559889 is a prime.

It is not a weakly prime, because it can be changed into another prime (204560431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102280200 + 102280201.

It is an arithmetic number, because the mean of its divisors is an integer number (102280201).

Almost surely, 2^204560401 is an apocalyptic number.

It is an amenable number.

204560401 is a deficient number, since it is larger than the sum of its proper divisors (1).

204560401 is an equidigital number, since it uses as much as digits as its factorization.

204560401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 204560401 is about 14302.4613615979. The cubic root of 204560401 is about 589.2150828263.

The spelling of 204560401 in words is "two hundred four million, five hundred sixty thousand, four hundred one".