52440528 has 80 divisors (see below), whose sum is σ = 156517760. Its totient is φ = 14819328.

The previous prime is 52440511. The next prime is 52440533. The reversal of 52440528 is 82504425.

It is a junction number, because it is equal to n+sod(n) for n = 52440495 and 52440504.

It is a congruent number.

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, 31788 + ... + 33396.

It is an arithmetic number, because the mean of its divisors is an integer number (1956472).

Almost surely, 2^52440528 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 52440528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78258880).

52440528 is an abundant number, since it is smaller than the sum of its proper divisors (104077232).

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

52440528 is a wasteful number, since it uses less digits than its factorization.

52440528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724 (or 1718 counting only the distinct ones).

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

The square root of 52440528 is about 7241.5832523006. The cubic root of 52440528 is about 374.3021760278.

The spelling of 52440528 in words is "fifty-two million, four hundred forty thousand, five hundred twenty-eight".