525335441242321 has 4 divisors (see below), whose sum is σ = 525742993952100. Its totient is φ = 524927888532544.

The previous prime is 525335441242319. The next prime is 525335441242351. The reversal of 525335441242321 is 123242144533525.

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

It can be written as a sum of positive squares in 2 ways, for example, as 207084648270096 + 318250792972225 = 14390436^2 + 17839585^2 .

It is a cyclic number.

It is not a de Polignac number, because 525335441242321 - 2¹ = 525335441242319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525335441242351) 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, 203776352956 + ... + 203776355533.

It is an arithmetic number, because the mean of its divisors is an integer number (131435748488025).

Almost surely, 2^{525335441242321} is an apocalyptic number.

It is an amenable number.

525335441242321 is a deficient number, since it is larger than the sum of its proper divisors (407552709779).

525335441242321 is a wasteful number, since it uses less digits than its factorization.

525335441242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407552709778.

The product of its digits is 3456000, while the sum is 46.

Adding to 525335441242321 its reverse (123242144533525), we get a palindrome (648577585775846).

The spelling of 525335441242321 in words is "five hundred twenty-five trillion, three hundred thirty-five billion, four hundred forty-one million, two hundred forty-two thousand, three hundred twenty-one".