505050455 has 32 divisors (see below), whose sum is σ = 750962688. Its totient is φ = 317520000.

The previous prime is 505050451. The next prime is 505050463. The reversal of 505050455 is 554050505.

It is not a de Polignac number, because 505050455 - 2² = 505050451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505050451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65030 + ... + 72380.

It is an arithmetic number, because the mean of its divisors is an integer number (23467584).

Almost surely, 2^505050455 is an apocalyptic number.

505050455 is a deficient number, since it is larger than the sum of its proper divisors (245912233).

505050455 is a wasteful number, since it uses less digits than its factorization.

505050455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7527.

The product of its (nonzero) digits is 12500, while the sum is 29.

The square root of 505050455 is about 22473.3276352213. The cubic root of 505050455 is about 796.3639442229.

Subtracting 505050455 from its reverse (554050505), we obtain a triangular number (49000050 = T₉₈₉₉).

It can be divided in two parts, 505050 and 455, that added together give a palindrome (505505).

The spelling of 505050455 in words is "five hundred five million, fifty thousand, four hundred fifty-five".