505503867 has 16 divisors (see below), whose sum is σ = 767248128. Its totient is φ = 293045280.

The previous prime is 505503853. The next prime is 505503871. The reversal of 505503867 is 768305505.

It is not a de Polignac number, because 505503867 - 2¹⁶ = 505438331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505503667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332248 + ... + 333765.

It is an arithmetic number, because the mean of its divisors is an integer number (47953008).

Almost surely, 2^505503867 is an apocalyptic number.

505503867 is a deficient number, since it is larger than the sum of its proper divisors (261744261).

505503867 is a wasteful number, since it uses less digits than its factorization.

505503867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666050.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 505503867 is about 22483.4131528111. The cubic root of 505503867 is about 796.6021864057.

The spelling of 505503867 in words is "five hundred five million, five hundred three thousand, eight hundred sixty-seven".