52505406013 has 8 divisors (see below), whose sum is σ = 52693313400. Its totient is φ = 52317627648.

The previous prime is 52505406011. The next prime is 52505406017. The reversal of 52505406013 is 31060450525.

52505406013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15559568644 + 36945837369 = 124738^2 + 192213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52505406013 - 2¹ = 52505406011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505406011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 823443 + ... + 884911.

It is an arithmetic number, because the mean of its divisors is an integer number (6586664175).

Almost surely, 2^52505406013 is an apocalyptic number.

It is an amenable number.

52505406013 is a deficient number, since it is larger than the sum of its proper divisors (187907387).

52505406013 is a wasteful number, since it uses less digits than its factorization.

52505406013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64511.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 52505406013 its reverse (31060450525), we get a palindrome (83565856538).

The spelling of 52505406013 in words is "fifty-two billion, five hundred five million, four hundred six thousand, thirteen".