683525385 has 40 divisors (see below), whose sum is σ = 1278573120. Its totient is φ = 348692256.

The previous prime is 683525347. The next prime is 683525387. The reversal of 683525385 is 583525386.

683525385 is a `hidden beast` number, since 68 + 3 + 52 + 538 + 5 = 666.

It is not a de Polignac number, because 683525385 - 2⁶ = 683525321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 683525385.

It is not an unprimeable number, because it can be changed into a prime (683525387) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27375 + ... + 46004.

It is an arithmetic number, because the mean of its divisors is an integer number (31964328).

Almost surely, 2^683525385 is an apocalyptic number.

It is an amenable number.

683525385 is a deficient number, since it is larger than the sum of its proper divisors (595047735).

683525385 is a wasteful number, since it uses less digits than its factorization.

683525385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73419 (or 73410 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The square root of 683525385 is about 26144.3184076388. The cubic root of 683525385 is about 880.8829743682.

Subtracting from 683525385 its reverse (583525386), we obtain a palindrome (99999999).

It can be divided in two parts, 68352 and 5385, that added together give a palindrome (73737).

The spelling of 683525385 in words is "six hundred eighty-three million, five hundred twenty-five thousand, three hundred eighty-five".