52445642047 has 4 divisors (see below), whose sum is σ = 52446168736. Its totient is φ = 52445115360.

The previous prime is 52445641991. The next prime is 52445642063. The reversal of 52445642047 is 74024654425.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52445642047 - 2²³ = 52437253439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52445641994 and 52445642012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52445642077) by changing a digit.

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, 63354 + ... + 330007.

It is an arithmetic number, because the mean of its divisors is an integer number (13111542184).

Almost surely, 2^52445642047 is an apocalyptic number.

52445642047 is a deficient number, since it is larger than the sum of its proper divisors (526689).

52445642047 is a wasteful number, since it uses less digits than its factorization.

52445642047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526688.

The product of its (nonzero) digits is 1075200, while the sum is 43.

The spelling of 52445642047 in words is "fifty-two billion, four hundred forty-five million, six hundred forty-two thousand, forty-seven".