505653394 has 8 divisors (see below), whose sum is σ = 759075120. Its totient is φ = 252628356.

The previous prime is 505653391. The next prime is 505653397. The reversal of 505653394 is 493356505.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (505653391) and next prime (505653397).

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

It is not an unprimeable number, because it can be changed into a prime (505653391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95964 + ... + 101095.

It is an arithmetic number, because the mean of its divisors is an integer number (94884390).

Almost surely, 2^505653394 is an apocalyptic number.

505653394 is a deficient number, since it is larger than the sum of its proper divisors (253421726).

505653394 is a wasteful number, since it uses less digits than its factorization.

505653394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198344.

The product of its (nonzero) digits is 243000, while the sum is 40.

The square root of 505653394 is about 22486.7381805365. The cubic root of 505653394 is about 796.6807230898.

The spelling of 505653394 in words is "five hundred five million, six hundred fifty-three thousand, three hundred ninety-four".