505396213 has 16 divisors (see below), whose sum is σ = 618952320. Its totient is φ = 402794496.

The previous prime is 505396187. The next prime is 505396237. The reversal of 505396213 is 312693505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505396213 - 2⁹ = 505395701 is a prime.

It is a super-2 number, since 2×505396213² = 510850664229482738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505396013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15708 + ... + 35461.

It is an arithmetic number, because the mean of its divisors is an integer number (38684520).

Almost surely, 2^505396213 is an apocalyptic number.

It is an amenable number.

505396213 is a deficient number, since it is larger than the sum of its proper divisors (113556107).

505396213 is a wasteful number, since it uses less digits than its factorization.

505396213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51276.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 505396213 is about 22481.0189493270. The cubic root of 505396213 is about 796.5456332608.

The spelling of 505396213 in words is "five hundred five million, three hundred ninety-six thousand, two hundred thirteen".