505494073 has 4 divisors (see below), whose sum is σ = 577707520. Its totient is φ = 433280628.

The previous prime is 505494053. The next prime is 505494089. The reversal of 505494073 is 370494505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 505494073 - 2⁹ = 505493561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505494053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36106713 + ... + 36106726.

It is an arithmetic number, because the mean of its divisors is an integer number (144426880).

Almost surely, 2^505494073 is an apocalyptic number.

It is an amenable number.

505494073 is a deficient number, since it is larger than the sum of its proper divisors (72213447).

505494073 is an equidigital number, since it uses as much as digits as its factorization.

505494073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72213446.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 505494073 is about 22483.1953467473. The cubic root of 505494073 is about 796.5970417222.

The spelling of 505494073 in words is "five hundred five million, four hundred ninety-four thousand, seventy-three".