523523000 has 256 divisors, whose sum is σ = 1647959040. Its totient is φ = 150336000.

The previous prime is 523522991. The next prime is 523523057. The reversal of 523523000 is 325325.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1000739 + ... + 1001261.

It is an arithmetic number, because the mean of its divisors is an integer number (6437340).

Almost surely, 2^523523000 is an apocalyptic number.

523523000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523523000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823979520).

523523000 is an abundant number, since it is smaller than the sum of its proper divisors (1124436040).

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

523523000 is a wasteful number, since it uses less digits than its factorization.

523523000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 523523000 is about 22880.6249914638. The cubic root of 523523000 is about 805.9570936897.

Adding to 523523000 its reverse (325325), we get a palindrome (523848325).

The spelling of 523523000 in words is "five hundred twenty-three million, five hundred twenty-three thousand".