505059906 has 16 divisors (see below), whose sum is σ = 1087821504. Its totient is φ = 155403024.

The previous prime is 505059871. The next prime is 505059913. The reversal of 505059906 is 609950505.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3237486 + ... + 3237641.

It is an arithmetic number, because the mean of its divisors is an integer number (67988844).

Almost surely, 2^505059906 is an apocalyptic number.

505059906 is an abundant number, since it is smaller than the sum of its proper divisors (582761598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505059906 is a wasteful number, since it uses less digits than its factorization.

505059906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6475145.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 505059906 is about 22473.5379057237. The cubic root of 505059906 is about 796.3689116400.

The spelling of 505059906 in words is "five hundred five million, fifty-nine thousand, nine hundred six".