505739097 has 6 divisors (see below), whose sum is σ = 730512042. Its totient is φ = 337159392.

The previous prime is 505739027. The next prime is 505739107. The reversal of 505739097 is 790937505.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 403648281 + 102090816 = 20091^2 + 10104^2 .

It is not a de Polignac number, because 505739097 - 2⁷ = 505738969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505739027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28096608 + ... + 28096625.

It is an arithmetic number, because the mean of its divisors is an integer number (121752007).

Almost surely, 2^505739097 is an apocalyptic number.

It is an amenable number.

505739097 is a deficient number, since it is larger than the sum of its proper divisors (224772945).

505739097 is a wasteful number, since it uses less digits than its factorization.

505739097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56193239 (or 56193236 counting only the distinct ones).

The product of its (nonzero) digits is 297675, while the sum is 45.

The square root of 505739097 is about 22488.6437341161. The cubic root of 505739097 is about 796.7257302506.

The spelling of 505739097 in words is "five hundred five million, seven hundred thirty-nine thousand, ninety-seven".