505000557029 has 2 divisors, whose sum is σ = 505000557030. Its totient is φ = 505000557028.

The previous prime is 505000556999. The next prime is 505000557031. The reversal of 505000557029 is 920755000505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375306940129 + 129693616900 = 612623^2 + 360130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505000557029 is a prime.

Together with 505000557031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 505000556983 and 505000557001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505000550029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252500278514 + 252500278515.

It is an arithmetic number, because the mean of its divisors is an integer number (252500278515).

Almost surely, 2^505000557029 is an apocalyptic number.

It is an amenable number.

505000557029 is a deficient number, since it is larger than the sum of its proper divisors (1).

505000557029 is an equidigital number, since it uses as much as digits as its factorization.

505000557029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78750, while the sum is 38.

The spelling of 505000557029 in words is "five hundred five billion, five hundred fifty-seven thousand, twenty-nine".