523520445 has 16 divisors (see below), whose sum is σ = 957294720. Its totient is φ = 239323584.

The previous prime is 523520419. The next prime is 523520447. The reversal of 523520445 is 544025325.

It is not a de Polignac number, because 523520445 - 2⁶ = 523520381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523520447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2492850 + ... + 2493059.

It is an arithmetic number, because the mean of its divisors is an integer number (59830920).

Almost surely, 2^523520445 is an apocalyptic number.

It is an amenable number.

523520445 is a deficient number, since it is larger than the sum of its proper divisors (433774275).

523520445 is a wasteful number, since it uses less digits than its factorization.

523520445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4985924.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 523520445 is about 22880.5691581307. The cubic root of 523520445 is about 805.9557825574.

The spelling of 523520445 in words is "five hundred twenty-three million, five hundred twenty thousand, four hundred forty-five".