505200404417 has 2 divisors, whose sum is σ = 505200404418. Its totient is φ = 505200404416.

The previous prime is 505200404389. The next prime is 505200404453. The reversal of 505200404417 is 714404002505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442862299441 + 62338104976 = 665479^2 + 249676^2 .

It is a cyclic number.

It is not a de Polignac number, because 505200404417 - 2²⁶ = 505133295553 is a prime.

It is not a weakly prime, because it can be changed into another prime (505200484417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252600202208 + 252600202209.

It is an arithmetic number, because the mean of its divisors is an integer number (252600202209).

Almost surely, 2^505200404417 is an apocalyptic number.

It is an amenable number.

505200404417 is a deficient number, since it is larger than the sum of its proper divisors (1).

505200404417 is an equidigital number, since it uses as much as digits as its factorization.

505200404417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22400, while the sum is 32.

The spelling of 505200404417 in words is "five hundred five billion, two hundred million, four hundred four thousand, four hundred seventeen".