52780275027505 has 8 divisors (see below), whose sum is σ = 63346030842600. Its totient is φ = 42217752815616.

The previous prime is 52780275027481. The next prime is 52780275027553. The reversal of 52780275027505 is 50572057208725.

It can be written as a sum of positive squares in 4 ways, for example, as 8443214529841 + 44337060497664 = 2905721^2 + 6658608^2 .

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-52780275027505 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808364890 + ... + 808430179.

It is an arithmetic number, because the mean of its divisors is an integer number (7918253855325).

Almost surely, 2^{52780275027505} is an apocalyptic number.

It is an amenable number.

52780275027505 is a deficient number, since it is larger than the sum of its proper divisors (10565755815095).

52780275027505 is a wasteful number, since it uses less digits than its factorization.

52780275027505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616801603.

The product of its (nonzero) digits is 13720000, while the sum is 55.

The spelling of 52780275027505 in words is "fifty-two trillion, seven hundred eighty billion, two hundred seventy-five million, twenty-seven thousand, five hundred five".