505212602561 has 2 divisors, whose sum is σ = 505212602562. Its totient is φ = 505212602560.

The previous prime is 505212602551. The next prime is 505212602569. The reversal of 505212602561 is 165206212505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422890090000 + 82322512561 = 650300^2 + 286919^2 .

It is a cyclic number.

It is not a de Polignac number, because 505212602561 - 2¹⁸ = 505212340417 is a prime.

It is not a weakly prime, because it can be changed into another prime (505212602569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252606301280 + 252606301281.

It is an arithmetic number, because the mean of its divisors is an integer number (252606301281).

Almost surely, 2^505212602561 is an apocalyptic number.

It is an amenable number.

505212602561 is a deficient number, since it is larger than the sum of its proper divisors (1).

505212602561 is an equidigital number, since it uses as much as digits as its factorization.

505212602561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 505212602561 in words is "five hundred five billion, two hundred twelve million, six hundred two thousand, five hundred sixty-one".