505045457 has 16 divisors (see below), whose sum is σ = 585999360. Its totient is φ = 426341328.

The previous prime is 505045451. The next prime is 505045481. The reversal of 505045457 is 754540505.

It is not a de Polignac number, because 505045457 - 2¹⁰ = 505044433 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 132188 + ... + 135954.

It is an arithmetic number, because the mean of its divisors is an integer number (36624960).

Almost surely, 2^505045457 is an apocalyptic number.

It is an amenable number.

505045457 is a deficient number, since it is larger than the sum of its proper divisors (80953903).

505045457 is a wasteful number, since it uses less digits than its factorization.

505045457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060.

The product of its (nonzero) digits is 70000, while the sum is 35.

The square root of 505045457 is about 22473.2164364605. The cubic root of 505045457 is about 796.3613172642.

The spelling of 505045457 in words is "five hundred five million, forty-five thousand, four hundred fifty-seven".