52449069569 has 8 divisors (see below), whose sum is σ = 56485394280. Its totient is φ = 48412999296.

The previous prime is 52449069551. The next prime is 52449069571. The reversal of 52449069569 is 96596094425.

It can be written as a sum of positive squares in 4 ways, for example, as 1874457025 + 50574612544 = 43295^2 + 224888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52449069569 is a prime.

It is a super-2 number, since 2×52449069569² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52449069469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750677 + ... + 817565.

It is an arithmetic number, because the mean of its divisors is an integer number (7060674285).

Almost surely, 2^52449069569 is an apocalyptic number.

It is an amenable number.

52449069569 is a deficient number, since it is larger than the sum of its proper divisors (4036324711).

52449069569 is a wasteful number, since it uses less digits than its factorization.

52449069569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127219.

The product of its (nonzero) digits is 20995200, while the sum is 59.

The spelling of 52449069569 in words is "fifty-two billion, four hundred forty-nine million, sixty-nine thousand, five hundred sixty-nine".