52449312 has 48 divisors (see below), whose sum is σ = 138311712. Its totient is φ = 17402880.

The previous prime is 52449311. The next prime is 52449323. The reversal of 52449312 is 21394425.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 52449312.

It is not an unprimeable number, because it can be changed into a prime (52449311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22003 + ... + 24269.

It is an arithmetic number, because the mean of its divisors is an integer number (2881494).

Almost surely, 2^52449312 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 52449312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69155856).

52449312 is an abundant number, since it is smaller than the sum of its proper divisors (85862400).

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

52449312 is a wasteful number, since it uses less digits than its factorization.

52449312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2513 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 52449312 is about 7242.1897241097. The cubic root of 52449312 is about 374.3230739025.

The spelling of 52449312 in words is "fifty-two million, four hundred forty-nine thousand, three hundred twelve".