505212120659 has 2 divisors, whose sum is σ = 505212120660. Its totient is φ = 505212120658.

The previous prime is 505212120599. The next prime is 505212120691. The reversal of 505212120659 is 956021212505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505212120659 - 2²⁸ = 504943685203 is a prime.

It is not a weakly prime, because it can be changed into another prime (505212120359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606060329 + 252606060330.

It is an arithmetic number, because the mean of its divisors is an integer number (252606060330).

Almost surely, 2^505212120659 is an apocalyptic number.

505212120659 is a deficient number, since it is larger than the sum of its proper divisors (1).

505212120659 is an equidigital number, since it uses as much as digits as its factorization.

505212120659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 505212120659 in words is "five hundred five billion, two hundred twelve million, one hundred twenty thousand, six hundred fifty-nine".