505658474401 has 2 divisors, whose sum is σ = 505658474402. Its totient is φ = 505658474400.

The previous prime is 505658474383. The next prime is 505658474507. The reversal of 505658474401 is 104474856505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 454274652001 + 51383822400 = 673999^2 + 226680^2 .

It is a cyclic number.

It is not a de Polignac number, because 505658474401 - 2¹¹ = 505658472353 is a prime.

It is not a weakly prime, because it can be changed into another prime (505658474201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252829237200 + 252829237201.

It is an arithmetic number, because the mean of its divisors is an integer number (252829237201).

Almost surely, 2^505658474401 is an apocalyptic number.

It is an amenable number.

505658474401 is a deficient number, since it is larger than the sum of its proper divisors (1).

505658474401 is an equidigital number, since it uses as much as digits as its factorization.

505658474401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 505658474401 in words is "five hundred five billion, six hundred fifty-eight million, four hundred seventy-four thousand, four hundred one".