523113512 has 8 divisors (see below), whose sum is σ = 980837850. Its totient is φ = 261556752.

The previous prime is 523113497. The next prime is 523113517. The reversal of 523113512 is 215311325.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 491686276 + 31427236 = 22174^2 + 5606^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (523113517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32694587 + ... + 32694602.

Almost surely, 2^523113512 is an apocalyptic number.

It is an amenable number.

523113512 is a deficient number, since it is larger than the sum of its proper divisors (457724338).

523113512 is a wasteful number, since it uses less digits than its factorization.

523113512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65389195 (or 65389191 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 523113512 is about 22871.6748840132. The cubic root of 523113512 is about 805.7469049982.

Adding to 523113512 its reverse (215311325), we get a palindrome (738424837).

The spelling of 523113512 in words is "five hundred twenty-three million, one hundred thirteen thousand, five hundred twelve".