522540000 has 180 divisors, whose sum is σ = 1857511656. Its totient is φ = 139296000.

The previous prime is 522539993. The next prime is 522540001. The reversal of 522540000 is 45225.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522540001) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 178549 + ... + 181451.

Almost surely, 2^522540000 is an apocalyptic number.

522540000 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 522540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928755828).

522540000 is an abundant number, since it is smaller than the sum of its proper divisors (1334971656).

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

522540000 is a wasteful number, since it uses less digits than its factorization.

522540000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939 (or 2913 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 522540000 is about 22859.1338418585. The cubic root of 522540000 is about 805.4523389134.

Adding to 522540000 its reverse (45225), we get a palindrome (522585225).

The spelling of 522540000 in words is "five hundred twenty-two million, five hundred forty thousand".