523035604 has 72 divisors (see below), whose sum is σ = 1152883368. Its totient is φ = 205793280.

The previous prime is 523035559. The next prime is 523035613. The reversal of 523035604 is 406530325.

It can be written as a sum of positive squares in 4 ways, for example, as 9922500 + 513113104 = 3150^2 + 22652^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 593244 + ... + 594124.

It is an arithmetic number, because the mean of its divisors is an integer number (16012269).

Almost surely, 2^523035604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523035604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576441684).

523035604 is an abundant number, since it is smaller than the sum of its proper divisors (629847764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523035604 is a wasteful number, since it uses less digits than its factorization.

523035604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145 (or 1136 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 523035604 is about 22869.9716659204. The cubic root of 523035604 is about 805.7069026883.

Adding to 523035604 its reverse (406530325), we get a palindrome (929565929).

The spelling of 523035604 in words is "five hundred twenty-three million, thirty-five thousand, six hundred four".