523539072 has 512 divisors, whose sum is σ = 1997568000. Its totient is φ = 131383296.

The previous prime is 523539047. The next prime is 523539077. The reversal of 523539072 is 270935325.

523539072 is a `hidden beast` number, since 52 + 3 + 539 + 0 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523539077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7813983 + ... + 7814049.

It is an arithmetic number, because the mean of its divisors is an integer number (3901500).

Almost surely, 2^523539072 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 523539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (998784000).

523539072 is an abundant number, since it is smaller than the sum of its proper divisors (1474028928).

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

523539072 is a wasteful number, since it uses less digits than its factorization.

523539072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 36.

The square root of 523539072 is about 22880.9762029508. The cubic root of 523539072 is about 805.9653411528.

It can be divided in two parts, 52353 and 9072, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 523539072 in words is "five hundred twenty-three million, five hundred thirty-nine thousand, seventy-two".