52780527755 has 4 divisors (see below), whose sum is σ = 63336633312. Its totient is φ = 42224422200.

The previous prime is 52780527721. The next prime is 52780527773. The reversal of 52780527755 is 55772508725.

It is a happy number.

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

It is not a de Polignac number, because 52780527755 - 2¹² = 52780523659 is a prime.

It is a super-2 number, since 2×52780527755² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52780527697 and 52780527706.

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 3 ways as a sum of consecutive naturals, for example, 5278052771 + ... + 5278052780.

It is an arithmetic number, because the mean of its divisors is an integer number (15834158328).

Almost surely, 2^52780527755 is an apocalyptic number.

52780527755 is a deficient number, since it is larger than the sum of its proper divisors (10556105557).

52780527755 is a wasteful number, since it uses less digits than its factorization.

52780527755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556105556.

The product of its (nonzero) digits is 6860000, while the sum is 53.

The spelling of 52780527755 in words is "fifty-two billion, seven hundred eighty million, five hundred twenty-seven thousand, seven hundred fifty-five".