524864385 has 12 divisors (see below), whose sum is σ = 909765012. Its totient is φ = 279927648.

The previous prime is 524864363. The next prime is 524864429. The reversal of 524864385 is 583468425.

524864385 is a `hidden beast` number, since 52 + 486 + 43 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 143209089 + 381655296 = 11967^2 + 19536^2 .

It is not a de Polignac number, because 524864385 - 2¹¹ = 524862337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11663653 = 524864385 / (5 + 2 + 4 + 8 + 6 + 4 + 3 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 524864385.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5831782 + ... + 5831871.

It is an arithmetic number, because the mean of its divisors is an integer number (75813751).

Almost surely, 2^524864385 is an apocalyptic number.

It is an amenable number.

524864385 is a deficient number, since it is larger than the sum of its proper divisors (384900627).

524864385 is a wasteful number, since it uses less digits than its factorization.

524864385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11663664 (or 11663661 counting only the distinct ones).

The product of its digits is 921600, while the sum is 45.

The square root of 524864385 is about 22909.9189217247. The cubic root of 524864385 is about 806.6448550857.

The spelling of 524864385 in words is "five hundred twenty-four million, eight hundred sixty-four thousand, three hundred eighty-five".