52880640 has 144 divisors (see below), whose sum is σ = 173069568. Its totient is φ = 13754368.

The previous prime is 52880603. The next prime is 52880647. The reversal of 52880640 is 4608825.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52880647) 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, 180334 + ... + 180626.

It is an arithmetic number, because the mean of its divisors is an integer number (1201872).

Almost surely, 2^52880640 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 52880640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86534784).

52880640 is an abundant number, since it is smaller than the sum of its proper divisors (120188928).

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

52880640 is a wasteful number, since it uses less digits than its factorization.

52880640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 52880640 is about 7271.9075901719. The cubic root of 52880640 is about 375.3463821754.

The spelling of 52880640 in words is "fifty-two million, eight hundred eighty thousand, six hundred forty".