52378285339 has 4 divisors (see below), whose sum is σ = 52381315224. Its totient is φ = 52375255456.

The previous prime is 52378285279. The next prime is 52378285343. The reversal of 52378285339 is 93358287325.

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

It is a cyclic number.

It is not a de Polignac number, because 52378285339 - 2¹¹ = 52378283291 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 52378285339.

It is not an unprimeable number, because it can be changed into a prime (52378285439) 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, 1488862 + ... + 1523635.

It is an arithmetic number, because the mean of its divisors is an integer number (13095328806).

Almost surely, 2^52378285339 is an apocalyptic number.

52378285339 is a deficient number, since it is larger than the sum of its proper divisors (3029885).

52378285339 is a wasteful number, since it uses less digits than its factorization.

52378285339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029884.

The product of its digits is 10886400, while the sum is 55.

The spelling of 52378285339 in words is "fifty-two billion, three hundred seventy-eight million, two hundred eighty-five thousand, three hundred thirty-nine".