505089775297 has 4 divisors (see below), whose sum is σ = 508776562116. Its totient is φ = 501402988480.

The previous prime is 505089775273. The next prime is 505089775343. The reversal of 505089775297 is 792577980505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 442884926016 + 62204849281 = 665496^2 + 249409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505089775297 is a prime.

It is a super-2 number, since 2×505089775297² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505089775247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1843393204 + ... + 1843393477.

It is an arithmetic number, because the mean of its divisors is an integer number (127194140529).

Almost surely, 2^505089775297 is an apocalyptic number.

It is an amenable number.

505089775297 is a deficient number, since it is larger than the sum of its proper divisors (3686786819).

505089775297 is a wasteful number, since it uses less digits than its factorization.

505089775297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3686786818.

The product of its (nonzero) digits is 55566000, while the sum is 64.

The spelling of 505089775297 in words is "five hundred five billion, eighty-nine million, seven hundred seventy-five thousand, two hundred ninety-seven".