505070393 has 2 divisors, whose sum is σ = 505070394. Its totient is φ = 505070392.

The previous prime is 505070353. The next prime is 505070399. The reversal of 505070393 is 393070505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499835449 + 5234944 = 22357^2 + 2288^2 .

It is a cyclic number.

It is not a de Polignac number, because 505070393 - 2¹⁴ = 505054009 is a prime.

It is a super-2 number, since 2×505070393² = 510192203770348898, which contains 22 as substring.

It is a Chen prime.

It is equal to p_26608505 and since 505070393 and 26608505 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (505070399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252535196 + 252535197.

It is an arithmetic number, because the mean of its divisors is an integer number (252535197).

Almost surely, 2^505070393 is an apocalyptic number.

It is an amenable number.

505070393 is a deficient number, since it is larger than the sum of its proper divisors (1).

505070393 is an equidigital number, since it uses as much as digits as its factorization.

505070393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14175, while the sum is 32.

The square root of 505070393 is about 22473.7712233617. The cubic root of 505070393 is about 796.3744235029.

The spelling of 505070393 in words is "five hundred five million, seventy thousand, three hundred ninety-three".