52524540 has 72 divisors (see below), whose sum is σ = 164481408. Its totient is φ = 13553280.

The previous prime is 52524523. The next prime is 52524551. The reversal of 52524540 is 4542525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 874 + ... + 10286.

It is an arithmetic number, because the mean of its divisors is an integer number (2284464).

Almost surely, 2^52524540 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 52524540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82240704).

52524540 is an abundant number, since it is smaller than the sum of its proper divisors (111956868).

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

52524540 is a wasteful number, since it uses less digits than its factorization.

52524540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9459 (or 9454 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 52524540 is about 7247.3815961353. The cubic root of 52524540 is about 374.5019521551.

The spelling of 52524540 in words is "fifty-two million, five hundred twenty-four thousand, five hundred forty".