505264121 has 2 divisors, whose sum is σ = 505264122. Its totient is φ = 505264120.

The previous prime is 505264087. The next prime is 505264153. The reversal of 505264121 is 121462505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 361000000 + 144264121 = 19000^2 + 12011^2 .

It is a cyclic number.

It is not a de Polignac number, because 505264121 - 2⁶ = 505264057 is a prime.

It is not a weakly prime, because it can be changed into another prime (505264181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252632060 + 252632061.

It is an arithmetic number, because the mean of its divisors is an integer number (252632061).

Almost surely, 2^505264121 is an apocalyptic number.

It is an amenable number.

505264121 is a deficient number, since it is larger than the sum of its proper divisors (1).

505264121 is an equidigital number, since it uses as much as digits as its factorization.

505264121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 505264121 is about 22478.0809011802. The cubic root of 505264121 is about 796.4762312939.

The spelling of 505264121 in words is "five hundred five million, two hundred sixty-four thousand, one hundred twenty-one".