505132992257 has 2 divisors, whose sum is σ = 505132992258. Its totient is φ = 505132992256.

The previous prime is 505132992233. The next prime is 505132992269. The reversal of 505132992257 is 752299231505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330037611121 + 175095381136 = 574489^2 + 418444^2 .

It is a cyclic number.

It is not a de Polignac number, because 505132992257 - 2⁶ = 505132992193 is a prime.

It is not a weakly prime, because it can be changed into another prime (505132992757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252566496128 + 252566496129.

It is an arithmetic number, because the mean of its divisors is an integer number (252566496129).

Almost surely, 2^505132992257 is an apocalyptic number.

It is an amenable number.

505132992257 is a deficient number, since it is larger than the sum of its proper divisors (1).

505132992257 is an equidigital number, since it uses as much as digits as its factorization.

505132992257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 50.

The spelling of 505132992257 in words is "five hundred five billion, one hundred thirty-two million, nine hundred ninety-two thousand, two hundred fifty-seven".