523613412 has 54 divisors (see below), whose sum is σ = 1539677958. Its totient is φ = 149603328.

The previous prime is 523613407. The next prime is 523613459. The reversal of 523613412 is 214316325.

523613412 is a `hidden beast` number, since 5 + 2 + 3 + 613 + 41 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 508682916 + 14930496 = 22554^2 + 3864^2 .

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 17 ways as a sum of consecutive naturals, for example, 146653 + ... + 150180.

Almost surely, 2^523613412 is an apocalyptic number.

It is an amenable number.

523613412 is an abundant number, since it is smaller than the sum of its proper divisors (1016064546).

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

523613412 is a wasteful number, since it uses less digits than its factorization.

523613412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296857 (or 296845 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 523613412 is about 22882.6006389134. The cubic root of 523613412 is about 806.0034870659.

Adding to 523613412 its reverse (214316325), we get a palindrome (737929737).

The spelling of 523613412 in words is "five hundred twenty-three million, six hundred thirteen thousand, four hundred twelve".