505554906 has 16 divisors (see below), whose sum is σ = 1014957504. Its totient is φ = 167877024.

The previous prime is 505554899. The next prime is 505554911. The reversal of 505554906 is 609455505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158611 + ... + 161766.

It is an arithmetic number, because the mean of its divisors is an integer number (63434844).

Almost surely, 2^505554906 is an apocalyptic number.

505554906 is an abundant number, since it is smaller than the sum of its proper divisors (509402598).

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

505554906 is a wasteful number, since it uses less digits than its factorization.

505554906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320645.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 505554906 is about 22484.5481609037. The cubic root of 505554906 is about 796.6289955713.

The spelling of 505554906 in words is "five hundred five million, five hundred fifty-four thousand, nine hundred six".