505213259 has 8 divisors (see below), whose sum is σ = 535688640. Its totient is φ = 474822016.

The previous prime is 505213253. The next prime is 505213277. The reversal of 505213259 is 952312505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505213259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505213253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8444 + ... + 32889.

It is an arithmetic number, because the mean of its divisors is an integer number (66961080).

Almost surely, 2^505213259 is an apocalyptic number.

505213259 is a deficient number, since it is larger than the sum of its proper divisors (30475381).

505213259 is a wasteful number, since it uses less digits than its factorization.

505213259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42069.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 505213259 is about 22476.9495038806. The cubic root of 505213259 is about 796.4495048540.

The spelling of 505213259 in words is "five hundred five million, two hundred thirteen thousand, two hundred fifty-nine".