52712528 has 40 divisors (see below), whose sum is σ = 113537376. Its totient is φ = 23504000.

The previous prime is 52712519. The next prime is 52712533. The reversal of 52712528 is 82521725.

It is a happy number.

It is a super-2 number, since 2×52712528² = 5557221216301568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52712494 and 52712503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6503 + ... + 12153.

Almost surely, 2^52712528 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 52712528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56768688).

52712528 is an abundant number, since it is smaller than the sum of its proper divisors (60824848).

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

52712528 is a wasteful number, since it uses less digits than its factorization.

52712528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723 (or 5717 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 52712528 is about 7260.3393860067. The cubic root of 52712528 is about 374.9482073656.

The spelling of 52712528 in words is "fifty-two million, seven hundred twelve thousand, five hundred twenty-eight".