52505505278049 has 4 divisors (see below), whose sum is σ = 70007340370736. Its totient is φ = 35003670185364.

The previous prime is 52505505277993. The next prime is 52505505278053. The reversal of 52505505278049 is 94087250550525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52505505278049 - 2¹⁷ = 52505505146977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52505505278049.

It is not an unprimeable number, because it can be changed into a prime (52505505278099) 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, 8750917546339 + ... + 8750917546344.

It is an arithmetic number, because the mean of its divisors is an integer number (17501835092684).

Almost surely, 2^{52505505278049} is an apocalyptic number.

It is an amenable number.

52505505278049 is a deficient number, since it is larger than the sum of its proper divisors (17501835092687).

52505505278049 is a wasteful number, since it uses less digits than its factorization.

52505505278049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501835092686.

The product of its (nonzero) digits is 25200000, while the sum is 57.

The spelling of 52505505278049 in words is "fifty-two trillion, five hundred five billion, five hundred five million, two hundred seventy-eight thousand, forty-nine".