505344513 has 8 divisors (see below), whose sum is σ = 674308800. Its totient is φ = 336638288.

The previous prime is 505344509. The next prime is 505344527. The reversal of 505344513 is 315443505.

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

It is a cyclic number.

It is not a de Polignac number, because 505344513 - 2² = 505344509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505344013) 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, 59898 + ... + 67811.

It is an arithmetic number, because the mean of its divisors is an integer number (84288600).

Almost surely, 2^505344513 is an apocalyptic number.

It is an amenable number.

505344513 is a deficient number, since it is larger than the sum of its proper divisors (168964287).

505344513 is a wasteful number, since it uses less digits than its factorization.

505344513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129031.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 505344513 is about 22479.8690610066. The cubic root of 505344513 is about 796.5184711964.

The spelling of 505344513 in words is "five hundred five million, three hundred forty-four thousand, five hundred thirteen".