505045461 has 4 divisors (see below), whose sum is σ = 673393952. Its totient is φ = 336696972.

The previous prime is 505045451. The next prime is 505045481. The reversal of 505045461 is 164540505.

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 not a de Polignac number, because 505045461 - 2²² = 500851157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505045451) 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, 84174241 + ... + 84174246.

It is an arithmetic number, because the mean of its divisors is an integer number (168348488).

Almost surely, 2^505045461 is an apocalyptic number.

It is an amenable number.

505045461 is a deficient number, since it is larger than the sum of its proper divisors (168348491).

505045461 is a wasteful number, since it uses less digits than its factorization.

505045461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168348490.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 505045461 is about 22473.2165254554. The cubic root of 505045461 is about 796.3613193666.

Adding to 505045461 its reverse (164540505), we get a palindrome (669585966).

The spelling of 505045461 in words is "five hundred five million, forty-five thousand, four hundred sixty-one".