505534868 has 6 divisors (see below), whose sum is σ = 884686026. Its totient is φ = 252767432.

The previous prime is 505534849. The next prime is 505534889. The reversal of 505534868 is 868435505.

It can be written as a sum of positive squares in only one way, i.e., 439405444 + 66129424 = 20962^2 + 8132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63191855 + ... + 63191862.

It is an arithmetic number, because the mean of its divisors is an integer number (147447671).

Almost surely, 2^505534868 is an apocalyptic number.

It is an amenable number.

505534868 is a deficient number, since it is larger than the sum of its proper divisors (379151158).

505534868 is a wasteful number, since it uses less digits than its factorization.

505534868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126383721 (or 126383719 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 44.

The square root of 505534868 is about 22484.1025615878. The cubic root of 505534868 is about 796.6184704615.

The spelling of 505534868 in words is "five hundred five million, five hundred thirty-four thousand, eight hundred sixty-eight".