505535889 has 16 divisors (see below), whose sum is σ = 688787712. Its totient is φ = 329691648.

The previous prime is 505535881. The next prime is 505535903. The reversal of 505535889 is 988535505.

It is not a de Polignac number, because 505535889 - 2³ = 505535881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505535881) 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, 51624 + ... + 60630.

It is an arithmetic number, because the mean of its divisors is an integer number (43049232).

Almost surely, 2^505535889 is an apocalyptic number.

It is an amenable number.

505535889 is a deficient number, since it is larger than the sum of its proper divisors (183251823).

505535889 is a wasteful number, since it uses less digits than its factorization.

505535889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9416.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The square root of 505535889 is about 22484.1252665075. The cubic root of 505535889 is about 796.6190067561.

The spelling of 505535889 in words is "five hundred five million, five hundred thirty-five thousand, eight hundred eighty-nine".