505394455 has 16 divisors (see below), whose sum is σ = 637682400. Its totient is φ = 383967360.

The previous prime is 505394453. The next prime is 505394501. The reversal of 505394455 is 554493505.

It is not a de Polignac number, because 505394455 - 2¹ = 505394453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505394453) 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, 19725 + ... + 37414.

It is an arithmetic number, because the mean of its divisors is an integer number (39855150).

Almost surely, 2^505394455 is an apocalyptic number.

505394455 is a deficient number, since it is larger than the sum of its proper divisors (132287945).

505394455 is a wasteful number, since it uses less digits than its factorization.

505394455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57234.

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 505394455 is about 22480.9798496418. The cubic root of 505394455 is about 796.5447096760.

The spelling of 505394455 in words is "five hundred five million, three hundred ninety-four thousand, four hundred fifty-five".