523651968 has 96 divisors (see below), whose sum is σ = 1722155760. Its totient is φ = 149612544.

The previous prime is 523651939. The next prime is 523651987. The reversal of 523651968 is 869156325.

523651968 is a `hidden beast` number, since 523 + 65 + 1 + 9 + 68 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×523651968² = 548422767180546048, which contains 22 as substring.

It is a congruent number.

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, 24405 + ... + 40532.

Almost surely, 2^523651968 is an apocalyptic number.

It is an amenable number.

523651968 is an abundant number, since it is smaller than the sum of its proper divisors (1198503792).

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

523651968 is a wasteful number, since it uses less digits than its factorization.

523651968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64964 (or 64949 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 523651968 is about 22883.4430975760. The cubic root of 523651968 is about 806.0232697955.

The spelling of 523651968 in words is "five hundred twenty-three million, six hundred fifty-one thousand, nine hundred sixty-eight".