52592640 has 128 divisors (see below), whose sum is σ = 169866720. Its totient is φ = 13893632.

The previous prime is 52592629. The next prime is 52592653. The reversal of 52592640 is 4629525.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491467 + ... + 491573.

Almost surely, 2^52592640 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 52592640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84933360).

52592640 is an abundant number, since it is smaller than the sum of its proper divisors (117274080).

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

52592640 is an equidigital number, since it uses as much as digits as its factorization.

52592640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 52592640 is about 7252.0783227982. The cubic root of 52592640 is about 374.6637341130.

The spelling of 52592640 in words is "fifty-two million, five hundred ninety-two thousand, six hundred forty".