523450240000 has 110 divisors (see below), whose sum is σ = 1307569665644. Its totient is φ = 209379840000.

The previous prime is 523450239997. The next prime is 523450240067. The reversal of 523450240000 is 42054325.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 231055 + ... + 1048945.

Almost surely, 2^523450240000 is an apocalyptic number.

523450240000 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 523450240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653784832822).

523450240000 is an abundant number, since it is smaller than the sum of its proper divisors (784119425644).

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

523450240000 is an frugal number, since it uses more digits than its factorization.

523450240000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817931 (or 817898 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 523450240000 its reverse (42054325), we get a palindrome (523492294325).

The spelling of 523450240000 in words is "five hundred twenty-three billion, four hundred fifty million, two hundred forty thousand".