505490097 has 32 divisors (see below), whose sum is σ = 811918080. Its totient is φ = 273611520.

The previous prime is 505490081. The next prime is 505490119. The reversal of 505490097 is 790094505.

It is not a de Polignac number, because 505490097 - 2⁴ = 505490081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505490047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24447 + ... + 40107.

It is an arithmetic number, because the mean of its divisors is an integer number (25372440).

Almost surely, 2^505490097 is an apocalyptic number.

It is an amenable number.

505490097 is a deficient number, since it is larger than the sum of its proper divisors (306427983).

505490097 is a wasteful number, since it uses less digits than its factorization.

505490097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15753.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 505490097 is about 22483.1069249781. The cubic root of 505490097 is about 796.5949531529.

The spelling of 505490097 in words is "five hundred five million, four hundred ninety thousand, ninety-seven".