505908870 has 32 divisors (see below), whose sum is σ = 1215133920. Its totient is φ = 134803200.

The previous prime is 505908833. The next prime is 505908901. The reversal of 505908870 is 78809505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36970 + ... + 48770.

It is an arithmetic number, because the mean of its divisors is an integer number (37972935).

Almost surely, 2^505908870 is an apocalyptic number.

505908870 is an abundant number, since it is smaller than the sum of its proper divisors (709225050).

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

505908870 is a wasteful number, since it uses less digits than its factorization.

505908870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 505908870 is about 22492.4180558694. The cubic root of 505908870 is about 796.8148719876.

The spelling of 505908870 in words is "five hundred five million, nine hundred eight thousand, eight hundred seventy".