523535320045 has 4 divisors (see below), whose sum is σ = 628242384060. Its totient is φ = 418828256032.

The previous prime is 523535320003. The next prime is 523535320169. The reversal of 523535320045 is 540023535325.

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 314051522409 + 209483797636 = 560403^2 + 457694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523535320045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523535319986 and 523535320013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52353532000 + ... + 52353532009.

It is an arithmetic number, because the mean of its divisors is an integer number (157060596015).

Almost surely, 2^523535320045 is an apocalyptic number.

It is an amenable number.

523535320045 is a deficient number, since it is larger than the sum of its proper divisors (104707064015).

523535320045 is a wasteful number, since it uses less digits than its factorization.

523535320045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104707064014.

The product of its (nonzero) digits is 270000, while the sum is 37.

The spelling of 523535320045 in words is "five hundred twenty-three billion, five hundred thirty-five million, three hundred twenty thousand, forty-five".