505085280 has 96 divisors (see below), whose sum is σ = 1818319104. Its totient is φ = 115447296.

The previous prime is 505085279. The next prime is 505085327. The reversal of 505085280 is 82580505.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×505085280² = 510222280145356800, which contains 22 as substring.

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, 71802 + ... + 78521.

It is an arithmetic number, because the mean of its divisors is an integer number (18940824).

Almost surely, 2^505085280 is an apocalyptic number.

It is an amenable number.

505085280 is an abundant number, since it is smaller than the sum of its proper divisors (1313233824).

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

505085280 is a wasteful number, since it uses less digits than its factorization.

505085280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150348 (or 150340 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 33.

The square root of 505085280 is about 22474.1024292406. The cubic root of 505085280 is about 796.3822478311.

The spelling of 505085280 in words is "five hundred five million, eighty-five thousand, two hundred eighty".