505600501009 has 2 divisors, whose sum is σ = 505600501010. Its totient is φ = 505600501008.

The previous prime is 505600501001. The next prime is 505600501019. The reversal of 505600501009 is 900105006505.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 489496129600 + 16104371409 = 699640^2 + 126903^2 .

It is a cyclic number.

It is not a de Polignac number, because 505600501009 - 2³ = 505600501001 is a prime.

It is not a weakly prime, because it can be changed into another prime (505600501001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252800250504 + 252800250505.

It is an arithmetic number, because the mean of its divisors is an integer number (252800250505).

Almost surely, 2^505600501009 is an apocalyptic number.

It is an amenable number.

505600501009 is a deficient number, since it is larger than the sum of its proper divisors (1).

505600501009 is an equidigital number, since it uses as much as digits as its factorization.

505600501009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 31.

The spelling of 505600501009 in words is "five hundred five billion, six hundred million, five hundred one thousand, nine".