524513140 has 48 divisors (see below), whose sum is σ = 1166014080. Its totient is φ = 197850240.

The previous prime is 524513029. The next prime is 524513141. The reversal of 524513140 is 41315425.

It is a happy number.

It is a super-2 number, since 2×524513140² = 550228068065319200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524513141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14425 + ... + 35455.

It is an arithmetic number, because the mean of its divisors is an integer number (24291960).

Almost surely, 2^524513140 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 524513140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (583007040).

524513140 is an abundant number, since it is smaller than the sum of its proper divisors (641500940).

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

524513140 is a wasteful number, since it uses less digits than its factorization.

524513140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112 (or 21110 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 524513140 is about 22902.2518543483. The cubic root of 524513140 is about 806.4648764053.

Adding to 524513140 its reverse (41315425), we get a palindrome (565828565).

The spelling of 524513140 in words is "five hundred twenty-four million, five hundred thirteen thousand, one hundred forty".