505055451 has 4 divisors (see below), whose sum is σ = 673407272. Its totient is φ = 336703632.

The previous prime is 505055437. The next prime is 505055461. The reversal of 505055451 is 154550505.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 505055451 - 2¹⁰ = 505054427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505055461) 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, 84175906 + ... + 84175911.

It is an arithmetic number, because the mean of its divisors is an integer number (168351818).

Almost surely, 2^505055451 is an apocalyptic number.

505055451 is a deficient number, since it is larger than the sum of its proper divisors (168351821).

505055451 is a wasteful number, since it uses less digits than its factorization.

505055451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168351820.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 505055451 is about 22473.4387889348. The cubic root of 505055451 is about 796.3665701132.

The spelling of 505055451 in words is "five hundred five million, fifty-five thousand, four hundred fifty-one".