52640364 has 96 divisors (see below), whose sum is σ = 150183936. Its totient is φ = 14008320.

The previous prime is 52640363. The next prime is 52640389. The reversal of 52640364 is 46304625.

52640364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (52640363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272652 + ... + 272844.

It is an arithmetic number, because the mean of its divisors is an integer number (1564416).

Almost surely, 2^52640364 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 52640364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75091968).

52640364 is an abundant number, since it is smaller than the sum of its proper divisors (97543572).

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

52640364 is a wasteful number, since it uses less digits than its factorization.

52640364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 52640364 is about 7255.3679438055. The cubic root of 52640364 is about 374.7770265583. Note that the first 3 decimals are identical.

Adding to 52640364 its reverse (46304625), we get a palindrome (98944989).

The spelling of 52640364 in words is "fifty-two million, six hundred forty thousand, three hundred sixty-four".