52345644 has 48 divisors (see below), whose sum is σ = 132050688. Its totient is φ = 16043328.

The previous prime is 52345613. The next prime is 52345681. The reversal of 52345644 is 44654325.

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, 53649 + ... + 54615.

It is an arithmetic number, because the mean of its divisors is an integer number (2751056).

Almost surely, 2^52345644 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 52345644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66025344).

52345644 is an abundant number, since it is smaller than the sum of its proper divisors (79705044).

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

52345644 is a wasteful number, since it uses less digits than its factorization.

52345644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334 (or 1332 counting only the distinct ones).

The product of its digits is 57600, while the sum is 33.

The square root of 52345644 is about 7235.0289564037. The cubic root of 52345644 is about 374.0762901172.

Adding to 52345644 its reverse (44654325), we get a palindrome (96999969).

It can be divided in two parts, 5234 and 5644, that added together give a triangular number (10878 = T₁₄₇).

The spelling of 52345644 in words is "fifty-two million, three hundred forty-five thousand, six hundred forty-four".