505225347929 has 2 divisors, whose sum is σ = 505225347930. Its totient is φ = 505225347928.

The previous prime is 505225347917. The next prime is 505225348003. The reversal of 505225347929 is 929743522505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441529683529 + 63695664400 = 664477^2 + 252380^2 .

It is a cyclic number.

It is not a de Polignac number, because 505225347929 - 2⁸ = 505225347673 is a prime.

It is not a weakly prime, because it can be changed into another prime (505225377929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252612673964 + 252612673965.

It is an arithmetic number, because the mean of its divisors is an integer number (252612673965).

Almost surely, 2^505225347929 is an apocalyptic number.

It is an amenable number.

505225347929 is a deficient number, since it is larger than the sum of its proper divisors (1).

505225347929 is an equidigital number, since it uses as much as digits as its factorization.

505225347929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 505225347929 in words is "five hundred five billion, two hundred twenty-five million, three hundred forty-seven thousand, nine hundred twenty-nine".