52524840 has 64 divisors (see below), whose sum is σ = 158578560. Its totient is φ = 13917440.

The previous prime is 52524839. The next prime is 52524853. The reversal of 52524840 is 4842525.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52524798 and 52524807.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18730 + ... + 21350.

It is an arithmetic number, because the mean of its divisors is an integer number (2477790).

Almost surely, 2^52524840 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 52524840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79289280).

52524840 is an abundant number, since it is smaller than the sum of its proper divisors (106053720).

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

52524840 is a wasteful number, since it uses less digits than its factorization.

52524840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2798 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 52524840 is about 7247.4022932358. The cubic root of 52524840 is about 374.5026651575.

The spelling of 52524840 in words is "fifty-two million, five hundred twenty-four thousand, eight hundred forty".