505045453 has 4 divisors (see below), whose sum is σ = 550958688. Its totient is φ = 459132220.

The previous prime is 505045451. The next prime is 505045481. The reversal of 505045453 is 354540505.

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 505045453 - 2¹ = 505045451 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 22956601 + ... + 22956622.

It is an arithmetic number, because the mean of its divisors is an integer number (137739672).

Almost surely, 2^505045453 is an apocalyptic number.

It is an amenable number.

505045453 is a deficient number, since it is larger than the sum of its proper divisors (45913235).

505045453 is a wasteful number, since it uses less digits than its factorization.

505045453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45913234.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 505045453 is about 22473.2163474657. The cubic root of 505045453 is about 796.3613151618.

Adding to 505045453 its reverse (354540505), we get a palindrome (859585958).

The spelling of 505045453 in words is "five hundred five million, forty-five thousand, four hundred fifty-three".