505855357 has 8 divisors (see below), whose sum is σ = 580180032. Its totient is φ = 432045600.

The previous prime is 505855327. The next prime is 505855367. The reversal of 505855357 is 753558505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505855357 - 2¹⁵ = 505822589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505855327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126619 + ... + 130552.

It is an arithmetic number, because the mean of its divisors is an integer number (72522504).

Almost surely, 2^505855357 is an apocalyptic number.

It is an amenable number.

505855357 is a deficient number, since it is larger than the sum of its proper divisors (74324675).

505855357 is a wasteful number, since it uses less digits than its factorization.

505855357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257459.

The product of its (nonzero) digits is 525000, while the sum is 43.

The square root of 505855357 is about 22491.2284457741. The cubic root of 505855357 is about 796.7867763757.

The spelling of 505855357 in words is "five hundred five million, eight hundred fifty-five thousand, three hundred fifty-seven".