505601099 has 2 divisors, whose sum is σ = 505601100. Its totient is φ = 505601098.

The previous prime is 505601081. The next prime is 505601113. The reversal of 505601099 is 990106505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505601099 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (505601059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252800549 + 252800550.

It is an arithmetic number, because the mean of its divisors is an integer number (252800550).

Almost surely, 2^505601099 is an apocalyptic number.

505601099 is a deficient number, since it is larger than the sum of its proper divisors (1).

505601099 is an equidigital number, since it uses as much as digits as its factorization.

505601099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 505601099 is about 22485.5753539908. The cubic root of 505601099 is about 796.6532577316.

The spelling of 505601099 in words is "five hundred five million, six hundred one thousand, ninety-nine".