52464640 has 44 divisors (see below), whose sum is σ = 125865936. Its totient is φ = 20983808.

The previous prime is 52464637. The next prime is 52464649. The reversal of 52464640 is 4646425.

It is not an unprimeable number, because it can be changed into a prime (52464649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4 + ... + 10243.

Almost surely, 2^52464640 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 52464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62932968).

52464640 is an abundant number, since it is smaller than the sum of its proper divisors (73401296).

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

52464640 is a wasteful number, since it uses less digits than its factorization.

52464640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10272 (or 10254 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 52464640 is about 7243.2478902768. The cubic root of 52464640 is about 374.3595349162.

The spelling of 52464640 in words is "fifty-two million, four hundred sixty-four thousand, six hundred forty".